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Differentiate with respect to x: 3 sin^2 x + sec 2x

6 sinx cosx + (2 sin 2x)/(cos^2 2x)

Answered by Hugo M. • Maths tutor

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F ind all values of x in the range 0° <= x <= 180° satisfying tan(x+45°)= 8tan(x)

Solve the equation sin2x = tanx for 0° ≤ x ≤ 360°

How do you differentiate?

Using trigonometric identities, show that (cos(x) + sin(x))^2=1+sin(2x)

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