EX/Show that cos"x (1+ cos2x)

Q: evaluate exactly cos-1(-3/2)

A: -3/2 lies outside the domain of the function. Hence we will have no solution

Q: S./2(sec²x – cos²?x – tan²x)sin5xcosxdx -

A:

Q: Iim tan³x X10 1- Cos2x

A:

Q: Simplify tan 0-sec²0|1.

A:

Q: 2+tan x cos³ x

A:

Q: sec(-0) cose 1-cos²0 csc20 CS

A:

Q: Value of L is 16 $3+9s 16 O(1 + sin 31) 16 O (1 + cos 3t) 16 (1+ cos 3t) 3 (1 - cos 3t)

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Q: sin20 de 1+cos²0

A:

Q: Evaluate cos tan Vx² + 1

A: We have to evaluate the given trigonometric function.

Q: Evaluate the expression without using a calculator. (Assume the variable represents a positive…

A:

Q: The area of a rectangle

A: As we know that reactangle is a quadrilateral.The quadrilateral whose apposite sides are equal in…

Q: 2dx 2 2 cos x√ 4tanx - tan x S-

A:

Q: Sin(-

A: To evaluate the value of the sine function a the the given point

Q: Use th Start! 1- cos 2x

A: Given:1-cos2x/cos2x To simplify we use some trigonometric properties

Q: Is Cscx-1/1-Sinx=cscx

A:

Q: Prove that 1-cos2x+sin2x 1+cos2x+sin2x = tan x

A:

Q: 1+cos4x 1. 1-cos4x -csc2xdx

A:

Q: sin x + 1+ COS X 1+ cOS X = 2 csc X sin x

A: Given,          1+cosxsinx+sinx1+cosx=2cscx

Q: Solve the らinx + (Co SK)y = tanx

A: To solve the given differential equation.

Q: first derivation cos^3 (3x)

A: differentiate the function using chain rule.

Q: Factor  Cos^4 x + 2 cos^2x + 1

A:

Q: Prove cos4x=8cos4x-8cos2x+1

A: To prove:- cos(4x)=8cos4(x)-8 cos2(x)+1

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.