Example 22 Solve tan 2x = – cot (x" " 𝜋/3) tan 2x = –cot (𝑥" " 𝜋/3) We need to make both in terms of tan Rough tan (...
無料ダウンロード sin(θ-π/2)=-cosθ 320871-Sin(θ+π/2)=cosθ 证明
Or, sin(π/4) cosθ cos(π/4)sinθ =1 Or, sin(π/4θ )=1 Taking sin¹ on eachside, we get Or, π/4θ =sin¹(1) Or, π/4θ =π/2 Or, θ = (π/2π/4)= π/4 Hen...
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