1) Find The Value of : 2+6+18+...............+486 ? a) 728 b) 782 c) 287 2) Find first derivatives of (2x3+5)4 a) 26x2(2x3+5) b) 24x2(2x3+5) c) 20x2(2x3+5) 3) If the body returned to the point of projection , then .............. a) |v|=|v0| b) s=0 c) a=0 d) a and b

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