CBSE Class 11-science - Advanced Trigonometric Formulae Videos
Advanced trigonometric formulae
This video explains the derivation of expressions for trigonometric functions of tan(x+y) , cot(x+y) ,sin 2x, cos2x and tan2x and expressing sin2x cos2x and tan 2x in terms of tan x.
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Please someone solve
No. 15.iii)
- The equation sinx(sinx+cosx)=k has real solutions if and only if k is a real number such that_____________?
- If f(x)=2(7cosx+24sinx)(7sinx-24cosx), then find the maximum value of (f(x))^1/4
- Cot 4x (sin5x + sin3x)= cot x (sin5x - sin3x)
- In ?ABC, If r1=8, r2=12, r3=24,Show that a=12,b=16,c=20. (From
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Which of the following is the correct option?
- If acos θ = bcos (θ+120°) = c cos (θ+240°) , then find the value of 1/a+1/b+1/c
- If 13θ= π , find the value of 3θ+cos5θ + 2cosθcos9θ
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Prove that,
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If
find the value of 
