SOLUTIONS OF TRIGONOMETRIC EQUATIONS Ch:14 Fsc First Year consist of 50+ Multiple Choice Questions. Prepare these mcqs for ECAT and examination. These mcqs are very helpful for preparing NTS and PPSC exams. The mcqs were uploaded on daily basis so keep visiting this website. ONCE the material is completely uploaded then Explanation of each mcqs and videos will be provided very soon.


Q.1   Solution set of 2cos\theta+\sqrt{3} = 0 is 

(a)   finite

(b)  infinite

(c)  \phi

(d)  None

(Gujranwala board,2004)

Check Answer
b

Q.2   The general solution of the equation 1+cos x = 0 is

(a)  \begin{Bmatrix} \frac{\pi}{2}+2n\pi \end{Bmatrix}

(b)  \begin{Bmatrix} -\frac{\pi}{2}+2n\pi \end{Bmatrix}

(c)  \begin{Bmatrix} {\pi}+2n\pi \end{Bmatrix}

(d)  \begin{Bmatrix} {-\pi}+2n\pi \end{Bmatrix}

(Multan board,2004)

Check Answer
c

Q.3   If sin x = 1/ 2, then x = 

(a)    \frac{\pi}{6},\frac{5\pi}{6}

(b)  -\frac{\pi}{6},\frac{5\pi}{6}

(c)  -\frac{\pi}{6},-\frac{5\pi}{6}

(d)     \frac{\pi}{3},\frac{2\pi}{3}

(Gujranwala board,2006)

Check Answer
a

Q.4   Solution of 1 + cos x= 0 is 

(a)     \frac{\pi}{2}

(b)     \pi

(c)    2 \pi

(d)   None of these

Check Answer
b

Q.5   cos x = \frac{1}{2} has a solution

(a)  \frac{\pi}{2}

(b)  \frac{\pi}{3}

(c)  \frac{\pi}{4}

(d)  \frac{\pi}{6}

(Lahore board,2005)

Check Answer
d

Q.6   If sin x + cos x = 0, then x =

(a)  \frac{\pi}{4},-\frac{\pi}{4}

(b)  -\frac{\pi}{4},-\frac{\pi}{2}

(c)  -\frac{\pi}{4},\frac{3\pi}{4}

(d) None of these

(Lahore board,2004)

Check Answer
c

Q.7   Solutions of the equation 1+cos\theta =0 are in quadrants

(a) II & III

(b)  I & IV

(c)  II & IV

(d)  None of these

(Lahore board,2006)

Check Answer
d

 

SOLUTIONS OF TRIGONOMETRIC EQUATIONS Ch:14 Fsc First Year

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