Let (3, -8) be a point on the terminal side of 0. Find the exact values of cos0, csc0, and tan9.

Q: Rewrite cos(x) in two different ways to make two unique expressions.

A: To rewrite cosx in two different ways to make two unique expressions.

Q: If csc(x)=23/2 (in Quadrant-I), find, cos(2x)=

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Q: FInd the value of cos15 degree

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Q: What is the period of cos(2rx)?

A: We know that the period of  cosx is 0 to 2 π Hence cos0 to cos 2π

Q: 1) cos-105°

A: As per rule of bartleby we can solve only one question at a time and we can solve only three subpart…

Q: find sin2x, cos2x, and tan2x if cosx=-5/13 and x terminated in quadrant 111

A: Given  - cos x =-513 To find  -  sin2x, cos2x, tan2x  and x terminates in Quadrant III

Q: Use double- and half-angle formulas to find the exact value of the expression cos2 15° - sin2 15°.

A: Concept:   The calculus helps in understanding the changes between values that are related by a…

Q: Evaluate without using a calculator.       sec ( cos  -1 |1/5)

A: Given: seccos-115 we know that  secθ=1cosθ similarly, seccos-115=1coscos-115 we know that…

Q: If 0 is an angle in standard position and its terminal side passes through the point (-8,15), find…

A: The solution is:

Q: Find   cos(u2)cos(u2)   if   secu=9.545

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Q: Let (-5, 3) be a point on the terminal side of 0. Find the exact values of cos 0, csc 0, and tan 0.

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Q: Find exact value of 2cos15° cos75°

A: We have to find the exact value of , 2cos15° cos75°

Q: Find cos theta if (1, -3) is a point on the terminal side of theta /-10/10

A: If point ( x , y ) is on the terminal side of an angle θ in standard position, then the…

Q: Let (-7, 3) be a point on the terminal side of 0. Find the exact values of Sin Ø, Csc Ø and Cot Ø

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Q: 6. Use the fact that cos to find the exact value of tan 2 and csc- 24 48

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Q: Write cos*x in terms of first powers of cosine. 4

A: cos4x

Q: Let (-3,-2) be a point on the terminal side of 0. Find the exact values of cos0, sec 0, and cot0.

A: Given : point (-3,-2) on the terminal side of theta since both the coordinates are negative hence…

Q: Use a cofunction to write an expression equal to cos 77°. cos 77°

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Q: Evaluate (a) sin-1 (b) cos-1 (-)

A: Solve the trigonometry

Q: Find cos(arctan(2))

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Q: Find the angles x such that cosx = 1/2

A: Consider the following trig equation         cosx=12

Q: Find the Cos x if the point (-4, 6) is on the terminal ray for x, and the triangle is drawn in…

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Q: Find a cofunction with the same value as the given expression. tan -

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Q: - cos x

A: We know that cosx in 2nd quadrant is negative

Q: Let (-4, 5) be a point on the terminal side of 0. Find the exact values of cos 0, csc0, and tan0.

A: Now length of the hypotenuse is,

Q: find Cos0, tan0, and Sin0 if sec0=3 and 0 is acute.

A: To find the given values at an acute angle θ such that sec θ=3

Q: Find the exact values of cos theta, sin theta, and tan theta if theta is in standard position and P…

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Q: Find sin2x, cos2x, and tan2x if sinx=3/10 and x terminates in quadrant I.

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Q: Find sin2x, cos2x, and tan2x if sinx = 15/17 and x terminates in quadrant I.

A: sinx = 15/17 and x terminates in quadrant I. Now using the identity

Q: Write cos 3x cos 2x - sin 3x sin 2x as a single cosine.

A: Given expression is cos3xcos2x-sin3xsin2x. To write the given expression as a single cosine. We know…

Q: If csc(x)=95csc(x)=95 (in Quadrant-I), find cos(2x)=

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Q: Find the exact value of cos- 12

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Q: Write the expression cos(arccot x) in algebraic form.

A: The given expression is cosarccot x.

Q: Step by step show that cosx and sinx are even or odd?

A: A function ''f'' is said to be even if f(-x)=f(x)A function ''g'' is said to be odd if…

Q: Show that cos (90 degree - A) = sin A.

A: The given identity is cos90∘ -A=sinA.

Q: Use a cofunction to write an expression equal to cos 12 is

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Q: let (-8,3) be a point on the terminal side of x find the exact value of cosx

A: The coordinal of the point on the terminal side is (-8, 3):   Let AB = -8 represent the length of…

Q: Let (5, -2) be a point on the terminal side of 0. Find the exact values of cos 0, sec0, and cot0.

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Q: Verify that the equation is an identity. 1+ cos0 1- cos0 Show that (csc0+ cote)=

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Q: Determine the value of a, (give a reason for your choice); if cos 1 tan- 3x. 4x

A: Given: cos-114x=tan-13x we know that cos-1y=tan-11-y2y similarly,…

Q: Evaluate: [5 cos(5)a-3 csc²(x) ] dr =.

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Q: Find cos exactly. 6

A: Consider the following trigonometric identities. Given equation: The given trigonometric function…

Q: in

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Q: Find sin2x, cos2x, and tan2x if tanx = 1/2 and x terminates in quadrant III.

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Q: Use a cofunction to write an expression equal to coS 11

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Q: Find a cofunction 2x tan

A: We know that Therefore, we have

Q: If cos(theta) = -1/3, and theta terminates in QIII, find cos(theta) and tan(theta)

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Q: What is the first step in finding the exact value of cos 495 degree ?

A: We have to determine the value of term cos495°. Since, angle θ=495° is more than 360°, therefore the…

Q: Find the value of sec u if cos u = - 7

A: The sec and cos are important trigonometric functions. The other four functions are sine, tan, cot,…