Express cos- (a) in terms of cos(2a). Express sin (a) in terms of cos(2a).

Q: ·S Evaluate cos x sin³ x dx. + C

A: To evaluate the following integral.

Q: (a) Evaluate| cos (4x) -dx. (1+ 2sin ( n(4x)*

A:

Q: csc(sec-1 2) + cos(tan-(-v3).

A: Given data:     The expression for the given function is: csc(sec-12)+cos(tan-1(-31⁄2).   The given…

Q: cos-1 (cosx)= x       where..............

A: Given, cos-1cos x=x

Q: Express cos (a) in terms of cos(2a). Express sin (a) in terms of cos(2a). cos² (a) COS sin (a)

A: (a) We have to express cos2α in terms of cos2α.

Q: - sinx) dx 2. 1. (COSX (ax' +b)*x dx 2. 2/3

A:

Q: Simplify (cos(11t))+(cos(5t)/sin(11t)-sin(5t))

A:

Q: Sin(39)=Cos ( ? )

A: We know, Sin(x) = Cos(90°-x)

Q: How does sin(2x + (pi/2)) equal cos(2x) ?

A:

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

A:

Q: How does -cos(3t)sec(3t) equal -1?

A: given  -cos(3t)sec(3t) = -1

Q: (b) Evaluate A () a().

A: We have to evaluate  Delta( Sinx / x2 + 2x - 1 ) which is the laplacian or double derivative of the…

Q: (cos A + sin A)/(cos A - sin A) = (1+ sin(2A))/ cos(2A)

A:

Q: Cos(10+x)

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

Q: Express cos 2 sin cos(2 sin-1(+)) in terms of x.

A: The objective of the question is to express the given trigonometric expression, cos(2 *…

Q: 2000n? эрополз (Sin (35) - ton (85))² =

A: Given a expression .The aim is to evaluate the given expression.Formula:

Q: 22х+5 3. х2+20 dx

A: We have  (3) I=∫22x+5x2+20 dx We can write as I=22∫xx2+20+5∫ 1x2+20dxI=22I1+5I2

Q: Rewrite cos ( x –) in terms of sin(x) and cos(x) 3

A: we know that cos(x-y)=cos(x)cos(y)+sin(x)sin(y)

Q: sin (e3") dr .

A:

Q: Sin(28) = cos(a) %3D mLa?

A:

Q: Simplify cos²(4y) - sin²(4y)

A: