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Is it true that the sum of squares of sines of all angles of a right angled triangle is equal to 2. If yes then how to prove.

5 years ago


Answers : (1)


Dear Nirabhra

As angles of right angle triangle are 90,a,b

(sin90)2+(sin a)2+(sin b)2

=1+(sin a)2+(sin (90-a))2

=1+(sin a)2+(cos a)2



All the best.




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5 years ago

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