Math, asked by blink1acct, 2 months ago

prove that cos20°-cos70°/sin 70°-sin30°=1

Answers

Answered by amitsharma777222999

0

Step-by-step explanation:

cos(90-70)-cos(90-20)/sin70-sin20

cos(90-@)=sin@

sin70-sin20/sin70-sin20

=1

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