

Maths Formulas (a + b)(a – b) = a2 – b2... - Science ...
Minimum value of a2.sec2Ɵ + b2.cosec2Ɵ is (a + b)2; (0° < Ɵ < 90°) for eg. minimum value of 49 sec2Ɵ + 64.cosec2Ɵ is (7 + 8)2 = 225. among all shapes with the same perimeter a circle has the largest area. if one diagonal of a quadrilateral bisects the other, then it also bisects the quadrilateral. sum of all the angles of a convex ...