Question

sin15°×cos75°+cos^2 15°​

Answer 1

$\sin(15) \times \cos(75) + { \cos(15) }^{2}$

$= \sin(15) \times \cos(90 - 15) + { \cos(15) }^{2}$

$= \sin(15) \times \sin(15) + { \cos(15) }^{2}$

$= { \sin(15) }^{2} + { \cos(15) }^{2}$

$= 1$

Answer 2

Answer:

1

Step-by-step explanation:

Sin15×sin(90-75)×cos²15

=sin15.sin15+cos²15

=sin²15+cos²15

=1