Question

find the value of sin150​

Answer 1

Answer:

The reference triangle has 30 degrees as the reference angle. sin(150) = sin (90 + 60) = sin (90 - 60) = sin(30) = ½. 150° will lie in the second quadrant; and sine is positive in 2nd quadrant as per astc rule.

Step-by-step explanation:

Answer 2

Answer:

$sin \: (90 + 60) = 1 + \sqrt{3} \div 2 \\( 2 + \sqrt{3} ) \div 2$