Pls solve this friends 8 question pls fast
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Divyankasc:
which is
(√6-√2)/4
Square it
Substitute the value. and lo! You get the answer
what abt q 8
she don't know that
1 + [ tan A. tan (A/2) ]
= 1 + [ sin A. sin (A/2) / cos A. cos (A/2) ]
= [ cos A. cos (A/2) + sin A. sin (A/2) ] / [ cos A. cos (A/2) ]
= [ cos ( A - (A/2) ) ] / [ cos A. cos (A/2) ]
= [ cos (A/2) ] / [ cos A. cos (A/2) ]
= 1 / ( cos A )
= sec A
= 1 + [ sin A. sin (A/2) / cos A. cos (A/2) ]
= [ cos A. cos (A/2) + sin A. sin (A/2) ] / [ cos A. cos (A/2) ]
= [ cos ( A - (A/2) ) ] / [ cos A. cos (A/2) ]
= [ cos (A/2) ] / [ cos A. cos (A/2) ]
= 1 / ( cos A )
= sec A
which is (d)!! :D
thanks buddy
Helped ya with two questions. Hope you're happy!! @sreeja3
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option d satisfied the answer......
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