Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Sin 90 - θ, cos 90 - θ formula
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sin 90 - θ, cos 90 - θ formula
Last updated at May 29, 2023 by Teachoo
Question 1 Evaluate : (iii) "cos 48 sin 42 " "cos 48 sin 42 " = "cos (90 42 ) sin 42 " = "sin 42 sin 42 " = 0