integration

Î /2
statement1) âˆ« sin2kxcosxdx=Î /2 ;kÎµ I+
0
statement2) sin2kx/sinx=2[cosx+cos3x+..........+cos(2k-1)x]

are both the statements true
if yes then is statement 2 reason of 1

1 Answers

Both the statements are correct.........
to get (1) we need statement 2........
+ a property of definite integral......

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω