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State whether the following are true or false. Justify your answer. sin θ = 4/3, for some angle θ.

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Question

State whether the following are true or false. Justify your answer.

sin θ = `4/3`, for some angle θ.

Justify
True or False
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Solution

This statement is false.

Explanation:

sin θ = `4/3`

We know that in a right-angled triangle,

sin θ = `("Side opposite to ∠θ")/"Hypotenuse"`

In a right-angled triangle, hypotenuse is always greater than the remaining two sides. Therefore, such value of sin θ is not possible.

Hence, the given statement is false.

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Chapter 8: Introduction to Trigonometry - EXERCISE 8.1 [Page 121]

APPEARS IN

NCERT Mathematics [English] Class 10
Chapter 8 Introduction to Trigonometry
EXERCISE 8.1 | Q 11. (v) | Page 121
R.D. Sharma Mathematics [English] Class 10
Chapter 10 Trigonometric Ratios
EXERCISE 10.1 | Q 17. (iv) | Page 10.17
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