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# First Year Math Solutions Of Trigonometric Equations

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Class 9Class 10First YearSecond Year

2. Solve the following trigonometric equations:ii) \operatorname{cosec}^{2} \theta=\frac{4}{3}

$2. Solve the following trigonometric equations:ii) \operatorname{cosec}^{2} \theta=\frac{4}{3}$

7. 3 \cos ^{2} \theta-2 \sqrt{3} \sin \theta \cos \theta-3 \sin ^{2} \theta=0 [Hint: Divide by \sin ^{2} \theta ]

$7. 3 \cos ^{2} \theta-2 \sqrt{3} \sin \theta \cos \theta-3 \sin ^{2} \theta=0 [Hint: Divide by \sin ^{2} \theta ]$

Q.24 Solution of equation \tan x=\frac{1}{\sqrt{3}} is in:(a) I \& Il Lahore Board; 2015(b) I \& ll (c) 11 \& 1 \mathrm{~V} (d) I

$Q.24 Solution of equation \tan x=\frac{1}{\sqrt{3}} is in:(a) I \& Il Lahore Board; 2015(b) I \& ll (c) 11 \& 1 \mathrm{~V} (d) I$

Q.6 Solution of 1+\cos x=0 is :(a) \frac{\pi}{2} (b) \pi (c) 2 \pi (d) none of theseGujranwala Board 2013; Lahore Board 2015; 2005

$Q.6 Solution of 1+\cos x=0 is :(a) \frac{\pi}{2} (b) \pi (c) 2 \pi (d) none of theseGujranwala Board 2013; Lahore Board 2015; 2005$