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Tuesday 28 February 2023
Cot(A+B) formula and proof.
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How do you find the integral of 1/x ?
If the matrix A=[(2,3),(5, -2)], then show that A^-1=(1/19)A. [ISC2004]
Sumit is 3 times old as his son.Five years later, he will be two and a half times as old as his son. How old is Summit at present? (cbse 2019)
Slope of a non vertical line.
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