Question

Area of the parallelogram formed by the lines
I cos a + y sin a = p; x cos a + y sin a = 9; r cos B + y sin B =r; I cos B + y sin 8 =is​

Answer 1

Answer:

The area of the parallelogram formed by the lines xcosalpha + y sin alpha =p, x cos alpha + y sin alpha = q,x cos beta + y sin beta=r and x ...

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