Question

Solve for real numbers:

$\sf \left|\begin{array}{cccc}1&3+sin \ x&2+3 \ sin \ x&2 \ sinx\\1&2 + sin \ x + cos \ x&2sin \ x + sin \ x \ cos \ x&sin \ 2x \\1&1+sin \ x+cos \ x&sin \ x + cos \ x + sinx \ cosx&sinx \ cosx\\1&3+ cos \ x&2+3 \ cosx& 2 \ cos x\end{array}\right| = 0$

Answer 1

solution is attached above ....

Answer 2

Answer:

refer to attachment see the attachment