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If sin A=3/4, calculate cos A …

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If sin A=3/4, calculate cos A and tan A

Posted by Nikita Joshi 3 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Akshay Singh 3 years, 1 month ago

No

Khushi Kushwaha 3 years, 1 month ago

CosA=√7/4 TanA=3/√7

Nikita Joshi 3 years, 1 month ago

Sin A=3/4=P/H P=3 H=4 Using PGT H^2= P^2+ B^2 (4)^2= (3)^2+ B^2 16= 9+ B^2 16- 9= B^2 √7= B B= √7 Cos A= B/H= √7/4 Tan A= P/B= 3/√7

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