If and lies in the fourth quadrant

MATHEMATICS · Multi-part · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

If

\sec \phi = k\,(k>1)

and

\phi

lies in the fourth quadrant, express the following in terms of

k

: (i)

\cos \phi

(ii)

\sin \phi

(iii)

\tan \phi

Related theory

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