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What from Schenectady, NY's Resources

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Trigonometry

(i) Factorize the expression 2 sin x cos x - cos x + 4 sin x -2. (ii) Hence solve the equation 2 sin x cos x - 2=cos x - 4 sin x for -360°≤ x ≤ 360°

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Solve the equation (logarithms)

(i) Solve the equation log2(x3+1) - 2 log2x = log2(x2-x+1) -2 (ii) Hence solve the equation log2(x3+1) - log2x2 =log2(x2-x+1)-2     Ans: (i) 2+2√2       ...

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