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Q.52 see image............................................................

Q.52 see image............................................................

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Grade:12

1 Answers

Aditya Gupta
2081 Points
4 years ago
simply use the formulas r1= A/(s -a) etc and r= A/s
so u ll obtain an eqn in a, b and c. on simplifying you will get a^2+b^2=c^2, which means it is a right angle triangle with B=90 (by the converse of pythagoras theorem)
so sec^2A + csc^2B – cot^2C= 2
kindly approve :)

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