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Area of the parallelogram whose sides ar...

Area of the parallelogram whose sides are `x cos alpha+y sin alpha=p,
x cos alpha+y sin alpha=q,
x cos beta+ysin beta=r,
x cos beta+ysin beta=s` is ………..

Text Solution

Verified by Experts

The correct Answer is:
`+-(p-q)(r-s)cosec(alpha-beta)`
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