9. Which expression is equal to sin x tan x + cos x ? b. sec x a. sin x C. COS X d. sec x 10. What is equivalent to the expression (1 + cot? x) sin x ? a. sin x b. sec x C. COS X d. csc x

Q: Prove that each equation is an identity. sin 20 (b) 1+ cos 20 = tan e sin (s-t), cos (s -t)_ sin s…

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Q: 20 -1 3. sin

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Q: 1. 3 evaluate tan 2 x . 4 Given that tan x=-

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Q: Simplify: cosx sec x – cos² x O cos² x sec x sin x

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Q: Statement cotx (sec²x - 1) = = = cosx -(sec²x - 1) sinx cosx sinx cosx sinx sinx COS.X = tant…

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Q: Which of the following expressions is equivalent to O tan x + secx O cos x + cotx O cotx+sec x sin…

A: Which of the following expression is equivalent to cosx + tanxsinx?

Q: Establish the identity. sin x+ sin y X+y = tan COS X+ COs y 2.

A:

Q: dz (sin x) Select one: O a. cos x. O b. sin x. Oc. - cos x. d. – sin x.

A: We have to find the derivative

Q: 4. Which expression is equal to 1+sin x using identities? Cos a sec x + tan x O csc x + tan x CSc x…

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Q: 2. Verify: sin x+tan x %3D sin2x sec x cscx+cotx

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Q: 1. sin x csc x 5. cos x (tan x + 1)

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Q: tan² x = tan x

A: tan2x=tanx

Q: 7. Evaluate tan'(sin 5).

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Q: 2 csc T (Find an Exact valuE, no decimme answERS) lox SEC "/3-tan4

A: Given : 2cscπ6×secπ3-tanπ4

Q: 5. Which expression is equal to O -1 O 1 sin x tan x cot x - sec x COS X using identities?

A: Trigonometry formula

Q: 22. Use trig identities to simplify the following expressions: 22a. cot θ csc θ, 22b. csc(α) cos(α)…

A:

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.