Math, asked by sakshisejal2411, 1 month ago

it's urgent

plz answer it fast...
don't write anything else....

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Answered by mail2rajesh123456

Answer:

sorry I didn't know please

Answered by thakreruchika9

Answer:

sin²a+cos²a=1

11/61²+cos²a=1

cos²a=1-121/3721

=3721-121/3721

cos²a=3600/3721

cos a=60/61______taking square root

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