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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
Show that : (i) (1-sin60^(@))/(cos60^(@))=(tan60^(@)-1)/(tan60^(@)+1
How to prove that sin 780 sin 480 + cos 120 sin 30=1/2 - Quora
Ex 8.2, 1 Class 10 - Evaluate (i) sin 60° cos 30° + sin 30° cos 60°
Page 31 - modul trigonometri_Neat
If sin 600° cos 30° + cos 120° sin 150° = k, then k = (a) 0 (b) 1 (c) −1 (d) None of these
What is the value of sin150? - Quora
6 𝑐𝑜𝑠60−sin30+sin^2 45+𝑐𝑜𝑠^2 45#shorts #sslcexam2022
What is cos 90 + sin 60? - Quora
Evaluate each of the following: Sin 60° cos 30° + cos 60° sin 30° - Sarthaks eConnect
What is the value of sin150? - Quora
Ex 8.2, 1 Class 10 - Evaluate (i) sin 60° cos 30° + sin 30° cos 60°
Given that sin 60=√3/2 and cos 60=1/2 evaluate 1-sin60/1+cos 60? - Myschool
How to prove that sin 780 sin 480 + cos 120 sin 30=1/2 - Quora
How to prove that sin 780 sin 480 + cos 120 sin 30=1/2 - Quora
