Question

sin 60°. sec² 45° –3 tan 30° + 4 sin 0

Answer 1

Hi there !

sin 60°. sec² 45° –3 tan 30° + 4 sin 0

$\frac{ \sqrt{3} }{2} \times { \sqrt{2} }^{2} - 3 \times \frac{1}{ \sqrt{3} } + 4 \times 0 \\ \\ \frac{ \sqrt{3} }{2} \times 2 - 3 \times \frac{1}{ \sqrt{3} } + 0 \\ \\ \ \frac{ \sqrt{3} }{1} - \frac{3}{ \sqrt{3} } \\ \\ \\ \frac{0}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } = \frac{0}{3} (we \: ratinalise) \: \\ = 0$

Thanks :)

Answer 2

Answer:

Step-by-step explanation:

Root3/2*2-3*1/root3*0

=root3-root3

=0