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Hey guys... how do i start this, \int%20(8\cos^4{x}%20-8\cos^2{x}%20+1)%20dx thanks

Hi can someone explain how to sketch 1. | z - 3i | > | z + 2 | 2. w is a complex number and z is restricted as indicated. w = (z-2i)/(1-z) , |z| = 2 Thanks

Hi, can someone explain how to approach this question. A 1000kg car is moving at 25m/s when a net force of 200N acts to slow the car. This force acts while the car moves through a distance of 300m. What is the new speed of the car? thanks.

How would i go about sketching y = |x| ± sqrt(4-x2) ?

Given two roots of 2x3 - kx2 +8 = 0 are equal, find k.

Hi can someone help me out with this question. Find a, b and c if the graph of the quadratic function f(x) = ax^2+bx+c passes through O (0,0), A (4,0) and B (5,5). Then check by substitution whether the point D(-2,10) lies on the curve. Thanks.

Hi can anyone help me with this question please? Highway A and Highway B intersect at right angles. A car on Highway A is presently 80km from the intersection and is travelling towards the intersection at 50km per hour. A car on Highway B is presently 70km from the intersection and is...