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$c o t (θ - 30 °) = \frac{1}{\sqrt{3}}$ হলে sinθ = কত?

Created: 8 months ago | Updated: 2 months ago

Updated: 2 months ago

$\frac{1}{2}$

0

1

$\frac{\sqrt{3}}{2}$

নবম-দশম শ্রেণি (মাধ্যমিক) কুমিল্লা বোর্ড গণিত

Explanation

268

Best Ans:

Cot(A-30°)=1/√3

A-30°=60°

A=60°+30°

A=90°

Sin90°=1

8 months ago

0 0

Al Amin Hossan

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