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Sin48° × sec42° + cos48° × …

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Sin48° × sec42° + cos48° × cosec48° = 2

Posted by Samruddhi Jain 7 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Amrita Choudhary 7 years, 3 months ago

Answer :............... ___sin 48• × sec( 90•-48•) + cos ( 90•- 48•) × cosec 48• =........ ___sin 48• ×cosec 48• + sin 48• × cosec48•= 2............ ___1+1 =2 :::::Hence LHS = RHS

0Thank You

Amrita Choudhary 7 years, 3 months ago

I think there is a mistake in the question..... It can be....... Sin 48•× sec 42• + cos 42•× cosec 48• = 2

0Thank You

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