Question

Cos 45° - 2 cos 60° /
sin 45° - 2 sin 60°​

Answer 1

Step-by-step explanation:

• cos45°-2cos60°/

sim45°+2sin60°

• (1/√2-2×1/2)/

(1/√2+2×√3/2)

• (1/√2-1)/(1/√2+√3)
• {(1-√2)/√2}/{(1+√6)/√2}
• (1/√2)/1+√6)