Prove that (1 + sin A - cos A/1 + sin A + cos A)^2 = 1 - cos A/1 + cos A

  • matematika

    Subject:

    Math
  • Author:

    merle
  • Created:

    1 year ago

Answers 1

Step-by-step explanation:

LHS=

1−sinA

cosA

+

1+sinA

cosA

=

(1−sin

2

A)

cosA(1+sinA+1−sinA)

=

cos

2

A

2cosA

=

cosA

2

=2secA=RHS

Hence proved.

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