Math, asked by Adarsh7854, 1 year ago

Prove that :
sin240°+sin250°=1

Answers

Answered by surendrasahoo

2

Answer:

1/cos290+1/root3.sin250

=1/sin20 -1/root3.cos20

=root3cos20-sin20/root3.sin20.cos20

=4.(sin60co20-cos60sin20)/root3.2sin20cos20 [multiply and divide by 4]

=4sin40/root3.sin40= 4/root3

Thanks & Regards

Sunil Raikwar

askIITians Faculty

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