cos + cos 30 + cos 50+ sin+sin 30+ sin 50+ ..... + cos(2n-1)0 = ......+ sin(2n-1)0 : = sin 2n 2 sin 0 sin² no sin 0

Q: sin? x 1- 1-cos x =-COS X

A: Here we have to use the basic trigonometric identity sin2θ+cos2θ =1 and we know that  a2-b2=…

Q: √3+2 px/3 ² √²³ (2² 10 (2 cos 0 - 3 sin 30) de dr

A:

Q: sin sin sin sin ¹0+ cos -¹³)-0

A: I am going to solve the problem by using some simple calculus to get the required result of the…

Q: 5TT 2. Cos 6. 2п Cos 3 + sin sin 6 - - - 3 一。

A:

Q: 1+cos 0 + sin 0 sin 0 Prove = 2 csc e 1+cos e

A: To prove : sinθ1+cosθ+1+cosθsinθ=2cscθ

Q: S sine sin (cose) de A. cos (cose) –cos³(cose) -cos B. cos (cose) + cos (cose) +cos (cose) + C C.…

A: Solving the problem by finding the derivative.

Q: 4 sin 0 1 – 3 cos 0

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

Q: TT -1 Cos 2 sin 2

A:

Q: Find the value of cos (570)sin (510) + sin (- 330)cos (- 390)

A:

Q: 2 cos 0 d 1 - sin A

A: We can find the integration as below.

Q: |CoS tan-1 24 1꼭 + cos. -1 3

A:

Q: 2 sin 0 - 3 sin 0 + 1 = 0

A: We will solve for theta as following .

Q: Cos2 π/3 + sin2 π/3

A:

Q: Cos(10+x)

A: Here , We will apply the formula of Cos ( A+B) Cos(A+B) = [CosA CosB - SinA SinB ]

Q: Im cos 2x + sin 2x} %3D Cos 4i - 4

A: To find: The imaginary part of -x4icos 2x+x4sin 2x. Concept used: If the complex number is written…

Q: sin? 0 – cos? 0 = sin? 0 - (1 - ( = 2 sin? 0 – 1

A:

Q: COS 437/12 COS7T4+Sin 43T112 Sin? Ti/4

A: The expression is given by cos43π12cos7π4+sin43π12sin7π4 To evaluate: The value of the expression

Q: Cos 0–N1+ Sin 20 Tan 0 Sin 0 –/1 + Sin 20 N.

A: Recall: sin (2θ)= 2 sinθ cosθ sinθ cosθ= tanθ cos2θ+sin2θ=1

Q: Evaluate cos³ (7x) sin(7x)dx

A:

Q: The simplified form of cos ( - 12a) + sin (* + - 12=) 6 O v2 cos 12r + 2 sin 12x O V3 cos 12a + v2…

A:

Q: Q#12 Please prove that cos(a− ß) cos(a+ß) = (cosa cos 6)²-(sina sin 6)²

A:

Q: sin (20-32°) = cos (0+29°)

A:

Q: Q#12 Please prove that cos(a-ß) cos(a+ß) = (cosa cos 6)²-(sina sin 6)²

A: To prove: cos(α-β)cos(α+β)=(cosαcosβ)2-(sinαsinβ)2

Q: 4 cos sin 0+3cos0=0

A: Given query is to find the solution of the expression.

Q: sin²A = 1 - cos²A cos²A - 1 1 + cos²A

A: sin2A