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Trigonometry || 02.02.2021

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Question 1

If 3cotθ = 4cosθ, then what is the value of cos2θ?

Question 2

What is the simplified value of ?

Question 3

sin230°+ Sin280° + Sin210° + sin2 90° = ?

Question 4

If cot A = 7, find

Question 5

What is the value of sin (–π/3) + cos(–π/6)?

Question 6

In a triangle ABC, right angled at B, AB = 7 cm and AC – BC = 1 cm. Then value of (sin∠C + cos∠C) is:

Question 7

If sin θ + cos θ = √2.cos (90° – θ), then cot θ is:

Question 8

What is the simplified value of  

Question 9

If sin x − cos x = 1, then what is the value of sin x + cos x

Question 10

What is the simplified value of 1 + tanθ.tan(θ/2)?
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