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Kartarpur is 64 kilometres from Amritsar...

Kartarpur is 64 kilometres from Amritsar. Find to the nearest second the angle subtended at the centre of the earth by the arc joining these two towns, earth being regarded as a sphere of 6400 kilometre radius.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
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  2. Find the radian measure corresponding to the following degree measure ...

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  3. Find the radian measure corresponding to the following degree measure ...

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  9. Find thedegree measure corresponding to the following measure. (Use pi...

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