Sine - Sum and Difference Formulas Practice Problems Online

Which of the following is equal to

$\罪56 ^ \保监会\cos 17 ^ \circ - \cos 56 ^ \circ \sin 17 ^ \circ ?$

\sin 39 ^ \circ

\sin 73 ^ \circ

\罪56 ^ \保监会

\sin 17 ^ \circ

$\sin 43 ^ \circ \cos 82 ^ \circ + \cos 43 ^ \circ \sin 82 ^ \circ = \sin N ^\circ$ , where $0 \leq N \leq 90$ . What is the value of $N$ ?

Which of the following is equal to

$\sin 29 ^ \circ \cos 31 ^ \circ + \cos 29 ^ \circ \sin 31 ^ \circ ?$

\frac{ \sqrt{3}} { 2 }

\frac{ \sqrt{2} } {2 }

1

\frac {\sqrt{1}} {2}

Using the Sine sum formula, what is the value of

$\sin 75 ^ \circ ?$

\frac{ \sqrt{6} - \sqrt{2} } { 4}

\frac{ \sqrt{6} + \sqrt{2} } { 4}

\frac{ -\sqrt{6} - \sqrt{2} } { 4}

\frac{ -\sqrt{6} + \sqrt{2} } { 4}

$\sin 21 ^ \circ \cos 37 ^ \circ + \cos 21 ^ \circ \sin 37 ^ \circ = \sin N ^\circ$ , where $0 \leq N \leq 90$ . What is the value of $N$ ?

Sine - Sum and Difference Formulas