Find the value of $7sin 30° cos 60°$.

Academic Mathematics NCERT Class 9

Given :

The given term is 7 sin 30° cos 60°.

To do :

We have to find the value of the given term.

Solution :

We know that,

sin 30° $= \frac{1}{2}$

cos 60° $=\frac{1}{2}$

Therefore,

7 sin 30° cos 60° $= 7 \times \frac{1}{2} \times \frac{1}{2} $

$= \frac{7}{4}=1.75$

Therefore the value of 7 sin 30° cos 60° is 1.75.

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Updated on: 10-Oct-2022

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