If 5{cos ^2}theta + 7{sin ^2}theta - 6 = 0, t | vedclass

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(b) $5 - 5{\sin ^2}	heta + 7{\sin ^2}	heta = 6$ 

$ \Rightarrow $ $2{\sin ^2}	heta = 1$

$ \Rightarrow $ ${\sin ^2}	heta = \frac{1}{2} =

Vedclass · Accepted Answer

$n\pi \pm \frac{\pi }{4}$

Vedclass · Answer

(b) $5 - 5{\sin ^2}	heta + 7{\sin ^2}	heta = 6$ 

$ \Rightarrow $ $2{\sin ^2}	heta = 1$

$ \Rightarrow $ ${\sin ^2}	heta = \frac{1}{2} = {\sin ^2}\left( {\frac{\pi }{4}} ight) $

$\Rightarrow 	heta = n\pi \pm \frac{\pi }{4}$.

If $5{\cos ^2}\theta + 7{\sin ^2}\theta - 6 = 0$, then the general value of $\theta $ is

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