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India
Class X

Evaluate sine, cosine and tangent expressions

Interactive practice questions

Evaluate the following expression, writing your answer correct to 2 decimal places.

$\sin69^\circ$sin69°

Easy
< 1min

Evaluate the following expression. Write your answer correct to one decimal place.

Easy
< 1min

Evaluate the following expression, writing your answer correct to two decimal places.

Easy
1min

Evaluate the following expression using your calculator. Write your answer correct to two decimal places.

Medium
< 1min
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Outcomes

10.T.IT.1

Trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined); motivate the ratios, whichever are defined at 0° and 90°. Values (with proofs) of the trigonometric ratios of 30°, 45° and 60°. Relationships between the ratios.

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