2) Establish the identity cos(a+B) cos(a-ß) cot acot B-1 cot acot B+1 Show each step to justify your conclusion.

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

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

Q: Divide 4 (cos 60° + i sin 60°) by 2 (cos 30° + i sin 30°) in rectangular form.

A:

Q: Review IP A=(5,2),B=(1oj 2) Find CAB @3lepe.fAB HidPair AB

A: The distance formula is used to find the distance between two points. The formula is given below:…

Q: 20 -1 3. sin

A:

Q: If cos cos0 0=find seco

A:

Q: Sin 3theta = Please step and tell her you got them

A:

Q: What is (cos(teta) + jsin(teta))n?

A:

Q: y-dx + (x2 + 3xy+ 4y²) dy = 0, when x = 2, y=1

A: Explanation of the answer is as follows

Q: -10: Simplify. 9. (1– cosx)(cscx + cotx)

A: Simplify  (1-cosx)(cosecx+cotx)

Q: evaluate cos-1(cos(80 degrees))=

A: The objective of the question is to evaluate the expression cos^-1(cos(80 degrees)).

Q: 6T cos 8 de : so O o o O

A: Here we will solve the  given integral,

Q: 50 cos 20 de

A:

Q: Find Sin, Cos, Tan 12 A 8.

A:

Q: Evaluate: cos32tdt CoS

A: Explanation: Given that: ∫cos32tdt Concept used: 1. ∫xndx=xn+1n+1+C 2. sin2θ+cos2θ=1

Q: Evaluate cos-1 (2+3i).

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

Q: Evaluate V2 cos sin-! 2.

A:

Q: Evaluate 3 L, cos¹ (2+1) dr. -1

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

Q: Simplify 3k(cos2 theta + cos theta)

A: The given expression is 3kcos2θ+cosθ . The identity of trigonometry is cos 2x=2cos2x-1. Our…

Q: Evaluate: Cos +iSin 12 12,

A: Introduction: DeMoivere's theorem is an important theorem in complex analysis. It says that for any…

Q: 9tx 81-18

A: Since you have asked multiple questions in a single request so we will be answering only first…

Q: What are the three formulas for cos 2A?

A: Three formulas for cos 2A are