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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
If sin 600° cos 30° + cos 120° sin 150° = k, then k = (a) 0 (b) 1 (c) −1 (d) None of these
Evaluate: sin 60° cos30° + sin 30° cos 60°
What is the value of sin150? - Quora
Show that: i 1 sin 60∘/cos 60∘=tan 60∘ 1/tan 60∘+1 ii cos 30∘+sin 60∘/1+sin 30∘+cos 60∘=cos 30∘
What is the value of [sin (90° - 2A) + cos (180° - 3A)] / [cos (90° - 2A) + sin (180° - A)]? - Quora
How to prove that sin 780 sin 480 + cos 120 sin 30=1/2 - Quora
What is the value of sin150? - Quora
How to prove that sin 780 sin 480 + cos 120 sin 30=1/2 - Quora
What is the value of sin150? - Quora
What is the value of sin150? - Quora
6. sin150 Sin(90+60)=+cos60∘=+1/2 sin(180−30)=+sin30∘+1/2 7cos120∘cos(90..
1-sin²30°/1+sin²45°)(cos²60°+cos²30°/cosec²90°-cot²90°)÷(sin60° Tan30°) - ConceptEra
SOLVED: 21. sin 60^∘(csc 60^∘-sin 60^∘) 22. (1+cot ^2 30^∘)/(1+tan ^2 30^∘) 23. sin 60^∘cos 60^∘tan 60^∘cot 60^∘sec 60^∘csc 60^∘ 24. sin 30^∘cos 60^∘+cos 30^∘sin 60^∘ 25. sec 60^∘-sin 30^∘+cot 45^∘ 26.
