Question

HeyAaaaaa!!

Anyone¿

Solve these questions!!

Plzzz help me

Answer 1

hey mate,

here is your answer,

(viii) (sin A +cosec A) ² + (cos A +sec A)² =7+tan A ² + cot A ²

squaring on both sides, we get

sin² A + cosec² A + 2 × sin A × cosecA + cos² A + sec² A + 2 secA × cosA

as we know we can write,

cosec² A = 1 + cot² A  

sec² A = 1+ tan² A

sin² A+ cos² A = 1

sin A × cosec A = 1 = sec A×cos A

 hence ,

=1 + 1 + cot² A + 2 + 1 + tan² A + 2

=7 + tan² A + cot² A

=R.H.S.

hence proved.

Answer 2

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