if sin + 90 degrees is = cosine sin + 180 degrees = -sin what is sin - 90 degrees

Q: Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2x). (Enter your answe...

A: Solution 

Q: 2) Look at the graphs. Are the lines Intersecting, Parallel or Coinciding. Then state the Solution. ...

A: According to figure both line are passing throught same point and slope are equal

Q: Find the missing number in the proportion. 3 x 8 32

A: topic - ratio and proportion

Q: Find the length of side BC of the quadrilateral ABCD when 2C = 40°, AB = 16cm, and AD = 12cm. * B 40...

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Q: t of the tower.

A: We Will find the distance. 

Q: 3. Derive and prove that cos 2x= 2cos'x-1, if the identity cos(A+ B) is given.

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Q: Give the exact value of the expression without using a calculator. sin 2 cos sin 2 cos (Simplify you...

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Q: Explain why the triangles are similar. Then find the missing length, x. 16 in. 8 in. 8 in. A 26 in 1...

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Q: Write the equations of the following in terms of the cotangent function: 14. 13. amp ++++++-

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Q: Also rotating and vibrating phenomena can be modeled with a general sine function. The radius of a ...

A: The radius of the Ferris wheel is a=16 m, which will be the amplitude of the sine function. The lowe...

Q: Given the general term of a sequence, find the first 3 terms, the 7th and 10th term for each problem...

A: Consider  3.       an=n2-1n2+14.       an=-12n-1

Q: Consider the vectors и 3D (3,5); h = (1, c) where c is a scalar. v = (5,-3); w = (2, 1) and %3D a) P...

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Q: 4. The perpendicular offset of the PT of a simple curve is 120.20m. If the angle of intersection is ...

A: here given data is  R = 120.20m I = 50' long chord=? long chord = 2Rsin(I/2)                    = 2(...

Q: Verify the following identity: sin 20 – tan 0 tan 0 cos 20

A: To verify the identity: sin 2θ-tan θ=tan θ cos 2θ  

Q: Solve each triangle ABC that exists. A = 38.2° a = 3.9 c= 11.1 Select the correct choice below and, ...

A: We have to find if the triangle exists or not and if it exists then dimensions of triangle.

Q: 3. Evaluate fe cos rdr 4. Evaluate: / tan -1 (3x)dx.

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Q: If cos(θ)=−1/19cos and θ is in the 3rd quadrant, find the exact value of sin(θ)

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Q: Verify the identity. Cos X 1-sin x = sec x + tan x Drag an expression into each box to correctly com...

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Q: Find the six trigonometric function values of the angle 0 in standard postion, if the terminal side ...

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Q: The angle between 0 and 2π in radians that is coterminal with the angle 53π/12 radians is

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Q: Use the graph of y = tan x to find all values of x, 0 ≤ x ≤ 2?, for which the following is true. (En...

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Q: Determine whether the polygons are similar. If they are, write a similarity statement and give the s...

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Q: Consider a triangle ABC like the one below. Suppose that B=27°, C=80°, and a =14. (The figure Is not...

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Q: 1) 4 - csc? 0 = 0

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Q: 18) Solve Systems of Equations using Matrices -2x 3y = -16 5x + 9y = 40 Show steps Fom of Mais d -b ...

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Q: A 6-foot spruce tree is planted 15 feet from a lighted street light whose lamp is 18 feet above the ...

A: AA Similarity criterion:  If any two angles of a triangle are equal to any two angles of another tri...

Q: March 15, 2022 w do we write the equation of a parabola using given attributes, including verte irec...

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Q: Bob is standing 6 meters away from Dave. Jenna is standing 5 meters away from Bob and 8 meters away ...

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Q: What is the area of a triangle whose sides measure 15 inches, 18 inches, and 21 inches? Enter your a...

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Q: What is the exact value of sin ( cos (-)) + tan- (sin (5))? 2/2-a 4 -2v2+x 2/2+ -2V2-n 4.

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Q: 0= -25pi/6, then what is sin(0)= and cos(0)=

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Q: diagonal are congruent. A diagonal OE is drawn on rhombus LOVE. Prove that the two triangles formed ...

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Q: 2V5 -1 3) csc cos -1 5) csc sin 4/5

A: We will find the inverse. 

Q: 1) 4 - csc? 0 = 0

A: Since you have asked multiple question, we will solve the first question for you as per our guide li...

Q: How can you use Pascal's triangle to expand (2x - 3y)? Drag an expression or value into each box to ...

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Q: f (x) = -7.6 sin ( - 2.3) +1.8 What is the amplitude of the function Enter your answer in the box. a...

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Q: Find the Determinant 14) 5 -61 det 14 = ad - bc %3D -31 ad - bc Determinant %3D D.

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Q: 7. Find the measure of angle QSR. Round to the nearest tenth. 38 cm 48.5 cm

A: The measure of angle QSR is 51.6°

Q: The simplified value of * cot A + tan B cot B + tan A tan B cot A tan A cot B Option 1 Option 2 tan ...

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Q: Q2.  For the structure below,  the length of side a = 8 m , the length of side b = 14 m and angle θ ...

A: Given the structure 

Q: Rewrite the following expression in terms of u with u > 0. That is, to rewrite the expression in ter...

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Q: The bearing of a ship from a lighthouse was found to be N 13° E. After the ship sailed 8.5 miles due...

A: Explained below 

Q: 2. Another wind turbine that Yoshio owns uses guy wires for support. In the figure, AC = 15 ft, mZAB...

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Q: The shadow of a tower standing ona level plane is found to be 30m longer when the Sun's altitude cha...

A: Given : Shadow of a tower is found to be 30 m longer when sun altitude angle change from 60 to 45

Q: x2 +2x+3 (b) Br+C factor A factor BC %3D %3D C =

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Q: 5) -3 = -3csc² 0 + 1

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Q: The time between high and low tide is 12 hours. The high tide of 22 feet occurred at 5 am. The Low t...

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Q: 2" The nth term of a series is represented by a,n = 5n+1.n George correctly applies the ratio test t...

A: Given :an=2n5n+1n

Q: un a = 90° <a < 180°, then find the exact value of each of the following. α a. sin b. cos c. tan ...

A: We have to find trigonometry value

Q: Draw or Cite 3-5 things found at home that show CONGRUENT TRIANGLES and  explain why the parts of t...

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