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COS2A+ cos2 A cot2A =cot 2 A
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COS2A+ cos2 A cot2A =cot 2 A

COS2A+ cos2 A cot2A =cot 2 A-example-1
User Wizhi
by
2.6k points

2 Answers

4 votes

Answer:

a= (π/4) + (kπ/2)

Step-by-step explanation:

I have attached the explanation above. hopefully this will help

COS2A+ cos2 A cot2A =cot 2 A-example-1
User RayfenWindspear
by
3.3k points
1 vote

9514 1404 393

Step-by-step explanation:

This is an identity.

cos²(A) +cos²(A)cot²(A) = cot²(A)

Transforming the left side, we have ...

= cos²(A)(1 +cot²(A))

= cos²(A)csc²(A)

= (cos(A)/sin(A))²

= cot²(A)

User Chriv
by
2.9k points
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