What is always true? O sin A - cos A O sin A- cos B sin A- cos C O sin A- tan B

Q: cos(a+ ß) =cos a cos ß - sin a sin ß Cosine Sum and Difference: cos(a- ß) =cos a cos ß +sinasin ß…

A:

Q: cos( – a) + sin( – æ) tan( – æ)

A:

Q: Evaluate sin (ax + 6) dassuming that a and b are constants and a 0 O cos (az | b) C O cos (az + b)…

A: Given integral, ∫sinax+bdx

Q: 3 R°. Is it true or false that

A:

Q: A. cos 2A = cos² A-sin² A B. cos 2A = (cos A - sin A) (cos A + sin A C. cos 2A = 2 cos² A-1 D. cos…

A:

Q: Evaluate sin (; - i In v2) cos(; - i In i ln v2) i In /2) cos o (3/4)i o (3/8)i o 5/8 o 5/4

A:

Q: Prove the following identity: 1-cos x sin x sin x 1+cos x

A: To prove: 1-cos xsin x=sin x1 + cos x Use the trigonometric identity, sin2x + cos2x = 1

Q: 0 cos n0 do

A:

Q: Evaluate S cos ve Vē sin? ve

A: consider I=∫cosθθ sin2θdθto solve the itegral we can use method ofsubstitution

Q: Evaluate the following (i) sin 78° cos 18° cos 78° sin 18° (ii) cos 47° cos 13° sin 47° sin 13°

A: These problems can be solved by using trigonometric formulas for sum and difference of two angles.…

Q: |17 Suppose that sin a + sin b = and cos a + cos b= 1. What is cos(a – b)? (A) V – 1 (B) (C) 를 (D)를…

A: Given that, sina+sinb=53             (1)cosa+cosb=1                  (2)

Q: Question 6 |5x sinx dx = 5x cosr +5 sinx +c OA. 5x cosx -5 sinx +c В. OB. -5x cosx +5 sinx +c Oc.…

A:

Q: cos x tan x 1+ cot x

A:

Q: Which of the following are identities? 1. sin (½ + x) = sin -sin x II. sin (x - 2) = sinx - sin 그플…

A: The given expressions are,I. II. III. IV. The aim is to find the true identities.

Q: 4 sin 0 1 – 3 cos 0

A: Using Pythagorean identity we write the equation with sin, then solve for sin theta.

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

A: Solve the trigonometry

Q: SinA (1+cos A) = 2cosecA (+cos A) sin A

A:

Q: 10. Prove that (지12 sin 8 cos 1 (cos a cosec 0) de 1/2-a (1-cos a )

A:

Q: What is one possible value of x that satisfies the equation cot x = cos x? - 4 T

A:

Q: is this true or false

A:

Q: Sing do Coso + Cose-2

A: LetI=∫sinθcos2θ+cosθ-2dθPut cosθ=uDifferentiate on both…