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(a), , The, , line, e, slope of aa n, , Q(1 3k, 3) is, , joining, , P, , (6, k), , and, , Find, , () k, , (n) Midpoint of PQ, using the value of *, found in ()., [3], (b) Without using trigonometrical1 tables,, evaluate, , cosec 57, , 2 cos, (c), , -, , tan, , 45°, , 33°, , + cos, , 44°, , cosec, , tan 60°, metallic cones,, , 46°, , 41, each, , certain number of, melted, are, cm, of radius 2 cm and height 3, radius, of, and recast into a solid sphere, of c o n e s ., number, cm. Find the, , A