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8. Introduction to Trigonometry and Its Applications
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Q1 of 120 Page 93

=1

True


⇒


(∵ tan (90° -θ) = cot θ)



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15

If a pole 6 m high casts a shadow 2 m long on the ground then the sun’s elevation is

1

=1

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The value of the expression (cos2 230 - sin2 670) is positive.

2

The value of the expression (cos2 230 - sin2 670) is positive.

Questions · 120
8. Introduction to Trigonometry and Its Applications
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