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Find the range of f(x)=1/(4cosx-3)....

Find the range of `f(x)=1/(4cosx-3)`.

Text Solution

Verified by Experts

`-1lecosxle1`
or `-4le4cosxle4`
or `-7le4cosx-3le1`
`or -7le4cosx-3lt0or 0lt4cosx-3le1 ( :' 4cosx-3ne0)`
or `-1/7ge1/(4cosx-3)gt - infty" or " inftygt1/(4cosx-3)ge1`
or `1/(4cosx-3)in(-infty,- 1/7] uu[-1,infty]`
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CENGAGE-TRIGONOMETRIC FUNCTIONS -SINGLE CORRECT ANSWER TYPE
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