(co0s(-)) +- (cos(- 1. COS because 6. COS 6.

Q: → find period of 8- @yotan 2 y. 5 cos 1o* 10 yo 11

A:

Q: (cos(4x))^2=___+____cos=(___x)

A: By double angle formula , we have By taking A=4x, we get

Q: (3sin(0.3)) + cos(tan-(4.9))

A: put calculator in radian mode. 0.88656+0.19996=1.086 ans :d

Q: cos(4x) – cos(8x) tan(2x) tan(6x) cos(4x)+ cos(8x)

A: We have to proof

Q: Verify the identity. (Simplify at each step.) 3 cos(x + y) cos(x - y) = 3 cos(x) - 3 sin²(y)

A:

Q: cos 4z - cos 2z =

A: cosx−cosy​=−2sinx+y2sinx−y​2​

Q: */2 Cos Jo

A:

Q: 2 | sin' O cos' OdO O cos

A: I have stated the used formula in the solution

Q: 2 cos I Use a counter-example to show that cos 2x

A:

Q: » find period of 8 ystan 4x @ y.5.cos.so* Cos 10X

A: Given y = tan(4x) Period = π/k where k is coefficient of x Therefore k = 4 Period = π/4

Q: 3- y 4 cos 3t - 2 sin 3t

A:

Q: Mutiply    (2 Cos theta +3 ) (4 cos theta - 5 )

A: To multiply: 2cosθ+34cosθ-5 Solution: Multiplying the given expression,…

Q: cos (2 sin-' (-}) tan-' (tan ())

A: To find the exact value

Q: 3. sin[cos¯(4/5) – tan-'(3/4)]

A:

Q: 5 cos? (- x), then f' ) %3D is

A:

Q: What are the differences between cosx and cos ¹x

A:

Q: How does ±√((csc^2x-1)/(csc^2x)) equal on of these: secx, cosx, sinx, tanx, cotx, cosx, or 1

A:

Q: 6. cos A = - 17 and cos B = -, with A and B in QIII.

A:

Q: Which is NOT equivalent to cos2x? 2 cos²x - 1 cos²x - sin² x 2sinxcosx 1-2 sin²x

A: We have identity  cos2x=cos2x-sin2xcos2x=1-2sin2xcos2x=2cos2x-1sin2x=2sinx cosx

Q: Find the point of intersection of cos(x)=cos^-1(x)

A: We will find the point of intersection using the graph.

Q: sin5 4 3 cos6 4 4. dw

A: Giventhat:-∫π3π sin5 34ω cos6 34ω dωTo find:- value of IntegralSolution:- Integral ∫sin534ωcos6 34ω…

Q: Sz sin2m-10 cos2n-10 —— В (т, п) 2

A: It is known that, βm,n=∫01xm-11-xn-1dx

Q: Describe what is wrong with the simplification shown. cos x - cos x sin^2 x = cos x - cos x (1 +…

A: Just simplyfing the above question we have

Q: sin 5tdt V1+ cos /1+cos5t

A: We need to evaluate ∫sin 5t dt1+cos 5t                                    (1) Let  1+cos 5t = u On…

Q: find cos x if cos 2x=1/9

A: Consider the equation

Q: Explain how y = cos x + 2 is different from y = cos (x +2)

A:

Q: Mutiply    (Cos theta +2 ) (cos theta - 5 )

A:

Q: 7 cos2(x) tan3(x) dx

A:

Q: Cos (tan (-1)) nin (con (-4))

A:

Q: cos2 θ - cos2 θ is equivalent to?

A:

Q: sin() cos( 2

A: To Find :   ∫sinx2cos3x2dx   Note: 2sinAcosB=sin(A+B)+sin(A-B)

Q: Verify the identity.

A: Given: verify the identity cos3x+cos5xcos3x-cos5x=cotxcot4x we know that…

Q: (3x - 6 cos when x is 2

A:

Q: 1) cos- 0 V3 3) cos-! 5) sin--1 7) cos-1

A:

Q: Mutiply    (cos theta  +3 )2

A: We have to find: (cos theta  +3 )2

Q: Mutiply    (3 sin  theta +4 ) (5 cos theta + 2 )

A:

Q: 1 1. sec-1 x = cos-1 = cos

A: we have to show that the given relation.

Q: 3 cos(cos-1() 10-

A: SOLUTION-

Q: x + 2 cos x 20. у -

A: If y = u/v, y' = (v*u' - u*v')/v^2.  d(cos x)/dx = -sinx d(x+2) = d(x) + d(2) = 1.

Q: cos 2x cos.x+ sin x xp-

A:

Q: 2cosx cos2x+1 3. Prove that secx. Which double angle identity of cos2x did you use and why?

A:

Q: 25. (cos-* x] = -

A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…

Q: COS X+ 3sin 2X

A: It is given that y''+y=cosx+3sin2x. We have to find the general solution of the given…

Q: 5. cos (sin 5.

A: We have to solve given expression.

Q: cos(cos^-1(3/5)) =

A:

Q: 2. cos ?x + 10cosx - 9

A: The solution for the above question is below as shown.

Q: 2. Cos4 Sin (Sinz) de

A: We have to solve

Q: fucntion y = 2 cos(x),  and set the interval to [−4.02, 4.02]

A: NOTE: According to guideline answer of first question can be given, for other please ask in a…