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How to find all interval solution [0,2pi)

0 votes

cos(x-pi/2)=1/2?

trigonometric-equation

asked Apr 11, 2014 in TRIGONOMETRY by rockstar Apprentice

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1 Answer

0 votes

The expression is

Even odd identities:

Since

The function is positive in first and second quadrant.

First quadrant :

Second quadrant :

has solutions in the interval .

answered Apr 12, 2014 by ashokavf Scholar

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