Leaving Cert Ireland · Mathematics

Trigonometric Ratios

4 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 4 questions

What is the exact value of $t an 4 5^{\circ}$ ?
Find the exact value of $sin 6 0^{\circ} cos 3 0^{\circ}$ .
A ladder 6 m long leans against a vertical wall and makes an angle of $6 0^{\circ}$ with the horizontal ground. How high up the wall does the ladder reach?
Solve $cos x = - \frac{1}{2}$ for $0^{\circ} \leq x \leq 36 0^{\circ}$ .

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