Question

Evaluate this expression (measures are in radians)
sin 3π/4 x cos 5π/3

Answer 1

=√2/4

Explanation:

`sin(3\pi /4) = (√(2))/(2) \\\\and \\\\cos(5\pi /3) = (1)/(2) \\\\`

Therefore, sin(3π/4) × cos(5π/3) = √2/2 × 1/2 = √2/4