When a and b are real, we define elatiblx with the equation ela+ ibix = eax , eibx e"(cos bx + i sin bx). %3D

Q: Find if sin x + 1 = cos y dx2

A:

Q: cos 2.

A: Using the trigonometric formula,  cos2θ=2cos2θ-1⇒cos2θ+1=2cos2θ⇒cos2θ+12=cos2θ⇒cos2θ=cos2θ+12 Taking…

Q: Evaluate π [ -πT cos² (5x) dx.

A:

Q: sece-cos e The simplified form of is sece+cose

A: We will simplify as following.

Q: Sin (Cos8X) Find dy

A: Given,           y=sincos8x

Q: dy Find dif sin x + 2 cos 2y) = 1 dx

A:

Q: Show that Cosx dx 9- Sin 3D

A:

Q: Determine? cos 3x.dx

A: Given integral ∫cos(3x) dx, solve using the properties of indefinite integrals ∫cos(ax)dx=…

Q: if g- Sin (cos 8x) Find y NP

A:

Q: Find if sin x +1= cos y

A: Given,           sinx+1=cosy

Q: Evaluate 3 L, cos¹ (2+1) dr. -1

A: l have given the answer in the next step. Hope you understand that