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8. Trigonometry
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Q1 of 21 Page 113

Choose the correct alternative answer for following multiple choice questions.

We know the identity that,

sinθ = cos (90 –θ)


sin 62° = cos (90 – 62)


= cos 28°


Therefore [cos 28°/cos 28°] = 1


So option D is correct.

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1

Choose the correct alternative answer for following multiple choice questions.

Which of the following is the value of sin 90°?

1

Choose the correct alternative answer for following multiple choice questions.

2tan 450 + cos 450 – sin 450 =?

2

In right angled ΔTSU, TS = 5, ∠S = 900, SU =12 then find sin T, cos T, tan T. Similarly find sin U, cos U, tan U.

3

In right angled ΔYXZ, ∠X = 900, XZ = 8cm, YZ =17cm, find sin Y, cos Y, tan Y, sin Z, cos Z, tan Z.

Questions · 21
8. Trigonometry
1 2 3 4 1 2 2 2 2 2 2 3 4 1 1 1 1 2 3 4 5
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