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The area S of a triangle is calculated b...

The area S of a triangle is calculated by measuring the sides b and c, and `angleA`. If there be an error `deltaA` in the measurement of `angleA`, show that the relative error in area is given by
`(deltaS)/(S) = cot A.deltaA`

Text Solution

Verified by Experts

The correct Answer is:
`0.7%`
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