Q. 16

# In <span lang="EN

Answer :

To prove:

The figure for the above question is as shown below,

Given ΔABC is a right - angled triangle, now applying the properties of the triangle,

We know

Now when θ = 30°, AB is the opposite side and BC is the hypotenuse, then the above equation becomes,

Now we know the value of , substituting this in above equation, we get

Hence proved

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