Fig 1 shows skectches of the curve y = 3x^2 + k The area of A is 3 times the area of B, Find the value of K. Please help.
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I think it goes: Integrate 3x^2+k and you get: x^3 + kx Now we know A = 3B so using the integral above we get: A as 8 + 2k, and B as 1 + k so 8 + 2k = 3(1 + k) Which gives k = 5
Thanks.