Question

if a+b+c=270 then sin2a-sin2b+sin2c +4sinAsinBcosC=​

Answer 1

Answer:

sin2a+sin 2b +sin 2c=a+b+c

4sinAsinBcosC=?

means sin a+b+c=270

here's your answer is 270....

refer to the attachment...

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Answer 2

Answer:

above answer

hope it helps