2. If a is an angle in a right triangle and sin a = , then cos a = (c) 13 13 (b) 문 (d) don't know 13 13 12

Q: If  alpha is a Quadrant IV angle with cos(alpha)=sqrt(5)/5 and sin(beta)=sqrt(10)/10, where…

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Q: If tan(θ)=15/8, 0 ≤ θ ≤ π2, then what is sin, cos, and sec of (θ)??

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Q: If y = cos*[sec2 (30)], and (6 y will be equal to? 9.

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Q: If sin 20 = √3, 0≤ 20 ≤ 2π, calculate the values of

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Q: In right triangle ABC, mZA = 30° and mZB = 90°. Which of the following are true? 1. sin(A) = sin(C)…

A: topic- trigonometric identities

Q: 4 9' Evaluate the other five trigonometric sin 0 = In a right triangle, 0 is an acute angle and…

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Q: 5. Determine two angles between 0° and 360° that have a secant of - 4. Round your answers to the…

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Q: 2. Which set of primary trigonometric ratios is correct for the angle 225°? a. sin 225° = 1 cos 225°…

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Q: Given Cos = - , 90°LQ<186 2. So) puy

A: We will make use of the following trigonometric identity: cosθ = 2cos2(θ/2) - 1

Q: Find the angles x such that sec x = 2.

A: Given: sec x = 2 To find: The angles x such that  sec x = 2.

Q: To explain why, for any acute angle u, it is impossible for sec theta =  1/2

A: To show:  It is impossible for sec theta =  1/2

Q: If 0 be a positive acute angle satisfying cos² 0 + cos“ 0 = 1 then the value of tan² 0 + tan“ 0 is

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Q: 8. Suppose that a point on the ground is 50 feet from the base of a tree. If the angle of elevation…

A: Explanation and solutions is given below....

Q: If cos x = and sI< 27, then tan 2x %3D

A: Given,           cosx=45 , 3π2≤x≤2π.

Q: If w-f(a,b,c)=cos(ab)sin(b)+c, what is at -,6 )? 2 3

A: The given function is w=fa,b,c=cosabsinb+c and the point 12,π3,6. .

Q: 2. For which angles 0, is sin(o) negative? Select all that apply. Explain. -- T 2 137 4 197 - 6

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Q: Recall that sin² e means (sin 6)2. 2 If sin e = find sin? e. sin? e =

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Q: 7 If cos x s and sin y = -0 < x <,n < y < *, evaluate sin(x – y) using compound angle formula. %3D…

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Q: 21. Imagine the point (-, -) on the terminal side of an angle. Find the value for the cosecant of…

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Q: If in right AABC with right angle at C, cos B : then what is the value of cos A?

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Q: Show that if tan0 = c and 0 &lt; 0 &lt; π/2, then cos0 = 1/ 1 + c2.Hint: Draw a right triangle whose…

A: tan θ=cTo find: Value of cosθ, where 0≤θ≤π2

Q: If cotx = D. cos x = Z. and x is in quadrant II, then A. sinx || ! B. cos x C. sin a CTLA

A: follow next step

Q: 9. If the sin (x +20°) = cos x, what is the measure angle x? %3D

A: As per our guidelines we are supposed to answer only one question.kindly repost others question as a…

Q: How would I find an angle between 0 and 2pi that is coterminal with 11pi/4? I don’t know the best…

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Q: 6 If csc B =6, e in Q2, find Sin(20) with

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Q: Find the exact value of s in L-7,7) by first finding the reference angle along with 45-45-90…

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Q: If a,ß are acute angles such that 4 cos a = and tan ß =, 5 find cos(a - B) 15 and sin

A: We have to find cosα-β and sinβ2

Q: Suppose - w = 5 and ||i x u|| = 2, and the angle between i and w is 0. Find %3| (a) tan 0 (b) e

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Q: If the terminal side of B contains the point (6, 8), what is the exact value of sin (8 7/2 10 V2 10…

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Q: 5 Find the general solution: cos 20-cos 0+1 0 where 0 is an angle measured in degrees? %3D

A: The general solution includes all possible solutions typically including arbitrary constants. A…

Q: Find all angles θ between 0∘ and 180∘ that satisfy the given equation: sinθ=√2/2

A: Given  equation  sinθ = 22

Q: Suppose 0 is an angle such that cos(0) If 0 < 0 < T, then cos 5 2 and sin ) If п <0 < 2т, then cos 2…

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Q: Suppose cos(α)=−3/4 and sin(α) is negative. If the point (−3,y) is on the terminal side of the…

A: Use trigonometric ratio  &amp; its identity

Q: Suppose 0 is an angle such that cos(0) %3D 3 If 0 < 0 < T, then cos and sin 2 If T < 0 < 27T, then…

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Q: If sec(α)=25.2/19.4, then what is the value of cos(α)?

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Q: 10. Show that if A ia an acute angle, sin²A+ cos² A = 1

A: This can be solved using triangle

Q: Prove that sin(x + y) # sin x + sin y by identifying one pair of angles x and y that shows that this…

A: We have to prove that, sin(x+y) ≠ sinx + siny by identifying one pair of angle x and y.

Q: 1 point Find all 6 trig ratios for angle A 25m 9m B 16m sin A = 16/25, cos A = 9/25, tan A = 16/9,…

A: We have to find trigonometric ratio.

Q: If: a cos(0) + bsin (0) = R cos(0 – B) where a = 6 and b = 12 Find the angle B. Give your answer in…

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Q: If sin“ w – cos (-w) = 0, and 2 then w = (?) %3D - 3.

A: Given: Sin4 w- cos4 (-w)=0 and -π2≤w≤π2 To find out: w=?

Q: The value of arcsin KIJ 4 O K|6 O KIM R 3 KIN 2 (9) is___

A: SOLUTION-

Q: if sin 70°=cos x where x is the measure of an acute angle then x =

A: By using trignometric formula we can easily solve this given problem Detailed solution given below

Q: In right ∆QRS, Angles Q and R are the acute angles. If tan Q = √51/7, determine cos R.

A: We have used the Pythagoras Theorem in this question.

Q: In terms of the tangent of a positive acute angle, what is the expression for tan(11π/8)?

A: Consider

Q: 1. Express cos-as a cofunction of a complimentary angle 10"

A: we have the formula  sin(π/2 - x ) = cos x Now, we have given  :  cos3π/10 So , x = 3π/10

Q: Find the exact value of s in [-7,7) by first finding the reference angle along with 45-45-90…

A: We know that, the 45°-45°-90° triangles can be solved using the 1:1: √2 ratio method. i.e, the…

Q: Suppose, for some angle 0 drawn in standard position, tan(e) = -24/7 and sin(0) < 0. Find the exact…

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Q: cos(nt/2) <t+Ⅱ.

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Q: For angles u and v in quadrant II, if  sin u =3/5 and cos v= -  5/13 ,  find the exact value of…

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.