Question

simplify all of these


(i) [sin x + sin 5x - sin 3x] / [cosx + cos 5x - cos 3x]

(ii) [sin x + sin 3x + sin 5x + sin 7x] / [cos x + cos 3x + cos 5x + cos 7x]

(iii) [ (1 + cos 2x) / (1 - cos x) ] - [ (4)*(cos x/2)² / (tan x)² ]


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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

blood pressure increases with increasing cardiac output, peripheral vascular resistance, volume of blood, viscosity of blood and elasticity of vessel walls. . . . .

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