1.

If | cos theta{ sin theta + sqrt( sin^(2) theta + sin^(2) alpha)}|le k, then the value of k is

Answer»

`sqrt(1+ COS^(2) alpha)`
`sqrt(1+ SIN^(2) alpha)`
`sqrt(2+sin^(2) alpha)`
`sqrt(2+cos^(2) alpha)`

ANSWER :B


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