Math, asked by chhayamajumdar3, 4 months ago

2 cos? A-1
cot A - tan A =
sin A cos A

Answers

Answered by sarika001276

0

Step-by-step explanation:

Answer

cotA−tanA

=

sinA

cosA

−

cosA

sinA

=

sinAcosA

cos

2

A−sin

2

A

=

sinAcosA

cos

2

A−(1−cos

2

A)

=

sinAcosA

2cos

2

A−1

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