7. Trigonometry
iGCSE (2021 Edition)
7.10 Solving equations using radians
Interactive practice questions
If $\sin\theta=0.3420$sinθ=0.3420, find the value of $\theta$θ correct to two decimal places, where $0$0 ≤
a
Find the acute angle $\theta$θ that solves the equation.
b
Now find ALL solutions to $\theta$θ in the range $0$0 to $2\pi$2π (Write the solutions on the same line, separated by a comma). Round your solutions to $2$2 decimal places.
Easy
3min
If $\cos\theta=0.9063$cosθ=0.9063, find the value of $\theta$θ correct to two decimal places, where $0$0 ≤
Easy
2min
Solve $\tan x=1$tanx=1 for $x$x where $0\le x\le\frac{\pi}{2}$0≤x≤π2.
Easy
< 1min
Solve $\sin x=\frac{\sqrt{3}}{2}$sinx=√32 for $x$x where $0\le x\le\frac{\pi}{2}$0≤x≤π2
Easy
1min
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