Math, asked by ullas2549, 10 months ago

secA(1-sinA)(secA+tanA)=1

Answers

Answered by kamal123473

0

Answer:

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Answered by anuham97

2

Answer:

SecA(1-sinA)(secA+tanA)=1

Step-by-step explanation:

LHS

= secA(1-sinA)(secA+tanA)

= (1/cosA)(1-sinA)(1/cosA+sinA/cosA)

= (1/cos²A)(1-sinA)(1+sinA)

= (1/cos²A)(1-sin²A)

= (1/cos²A)(cos²A)

= 1

= RHS

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