6. sin150 Sin(90+60)=+cos60∘=+1/2 sin(180−30)=+sin30∘+1/2
6. sin150 Sin(90+60)=+cos60∘=+1/2 sin(180−30)=+sin30∘+1/2
7cos120∘cos(90+30)=−sin30∘=+1/2cos(180∘−60)=−cos60∘=−1/2
cos(90+60)=−sin60∘=−8/2cos(180∘−30)=−cos30=−3/2
cos150
Video solution 1: 6. sin150 Sin(90+60)=+cos60∘=+1/2 sin(180−30)=+sin30∘+1/2
7cos120∘cos(90+30)=−sin30∘=+1/2cos(180∘−60)=−cos60∘=−1/2
cos(90+60)=−sin60∘=−8/2cos(180∘−30)=−cos30=−3/2
cos150
Video solution 2: 6. sin150 Sin(90+60)=+cos60∘=+1/2 sin(180−30)=+sin30∘+1/2
7cos120∘cos(90+30)=−sin30∘=+1/2cos(180∘−60)=−cos60∘=−1/2
cos(90+60)=−sin60∘=−8/2cos(180∘−30)=−cos30=−3/2
cos150
Ex 8.2, 1 Class 10 - Evaluate (i) sin 60° cos 30° + sin 30° cos 60°
Find the value of : (i) sin 30^(@)+cos 60^(@) (ii) sin 0^(@)-cos 0^(
Unit Circle: Sine and Cosine Functions
Why does cos (3,000) and cos (30,000) have the same output? - Quora
6.3: Unit Circle - Sine and Cosine Functions - Mathematics LibreTexts
Why is sin(60) + cos(30) not equal to sin(30) + cos(60)? - Quora
How to prove sin 30° =1/2 - Quora
Sin 120 How to Derive Sin 120 Degrees value?
Unit 2: Use reduction formulae to simplify trig ratios – National Curriculum (Vocational) Mathematics Level 3
