# Important information about solving trigonometric equation

I need check about these :

A) Solve the following, giving all positive values of the angle between 0° and 360° to the nearest minute only.

i) cos2x-sin^2 (x/2)+3/4 = 0

ii) cos4x =sin2x

iii) sin^2 theta = cos^2 theta +3/2

iv) sin(2x-10°)= 1/2

v) sin2x-cosx = 0

b) Write equivalent equations in the form of inverse functions for :

a) x= y+cos(theta) b) cosy = x^2

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#### Solution Preview

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Plane Trigonometry

I need check about these :

A) Solve the following, giving all positive values of the angle between 0° and 360° to the nearest minute only.

i) cos2x-sin^2 (x/2)+3/4 = 0 ...

#### Solution Summary

It shows how to solve trigonometric equations in detail. It also shows who to find equivalent equations in the form of inverse functions.

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