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(a) Prove that int(0)^(2x) f(x) dx = 2in...

(a) Prove that `int_(0)^(2x) f(x) dx = 2int_(0)^(2x) f(x) dx` when `f(2a-x) =f(x)` and hence evaluate `int_(0)^(pi) |cos x| dx`.
(b) Prove that `|{:(-a^(2),ab,ac),(bc,-b^(2),bc),(ca,cb,-c^(2)):}|=4a^(2)b^(2)c^(2)`.

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SUBHASH PUBLICATION-SUPER MODEL QUESTIONS PAPER (WITH ANSWERS) -PART-E
  1. (a) Prove that int(0)^(2x) f(x) dx = 2int(0)^(2x) f(x) dx when f(2a-x)...

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