Value of sin70°\sin110°

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Value of sin70°\sin110°

Posted by Harsh Ranjan 4 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Dεερακ Ȿιηɠꜧ 4 years, 5 months ago

$\frac {sin70°}{sin110°}$

$\frac{Sin(90-20)°}{sin(90+20)°}$

$=\frac{cos20°}{cos20°}$

$\frac {sin70°}{sin110°}=1$

$\fbox{Ans}$

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