(d) 4 cos' A = 4 - 4 sin' A 6 cos A - 5 = 1 - 6 sinA (cos P - sin P) + 2 sin Pcos P = 1 6. Prove the following trigonome

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D 4 Cos A 4 4 Sin A 6 Cos A 5 1 6 Sina Cos P Sin P 2 Sin Pcos P 1 6 Prove The Following Trigonome 1 (19.92 KiB) Viewed 78 times

(d) 4 cos' A = 4 - 4 sin' A 6 cos A - 5 = 1 - 6 sinA (cos P - sin P) + 2 sin Pcos P = 1 6. Prove the following trigonometric identities :- (a) 5cos A + 5 sin A = 5 (b) (c) 2 cos' A - 1 - 1 - 2 sin. A (e) (cos X + sin x) = 1 + 2 sin X cos X (g) (eos X + sin XXcos X - sinx) - 2 cos' X - 1 (h) (cos X - in XXcos X + sin x) = 1 - 2 sin' (i) tan Pcos P = sin ? 0) 1 - sina 1 (k) (1) sina tan'a cosa tan'a cosa sin cos B cos B sin B cos sin +