Math  /  Trigonometry

Question9. The diagram below shows the graphs of y=6sin2xy=6 \sin ^{2} x and y=6sinx1y=6 \sin x-1 where 0x0 \leq x \leq a) Explain how you could use this diagram to estimate the solution to the equation 6sin2x6sinx+1=06 \sin ^{2} x-6 \sin x+1=0, where 0x2π0 \leq x \leq 2 \pi intercepts b) Algebraically determine the solutions to the equation 6sin2x6sinx+1=06 \sin ^{2} x-6 \sin x+1=0, where 0x2π0 \leq x \leq 2 \pi. Give the solution correct to the nearest hundredth. c) Explain how you could use this diagram to estimate the solution to the equation 6sin2x(6sinx1)=06 \sin ^{2} x(6 \sin x-1)=0, where 0x2π0 \leq x \leq 2 \pi. d) Use an algebraic approach to find the solutions to the equation 6sin2x(6sinx1)6 \sin ^{2} x(6 \sin x-1) where 0x2π0 \leq x \leq 2 \pi. Give the solution correct to the nearest hundredth.

Studdy Solution
b) x0.21x \approx \mathbf{0.21}, 0.91\mathbf{0.91}, 2.23\mathbf{2.23}, 2.93\mathbf{2.93} d) x=0x = 0, 0.17\approx \mathbf{0.17}, π3.14\pi \approx \mathbf{3.14}, 2.97\approx \mathbf{2.97}, 2π6.282\pi \approx \mathbf{6.28}

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