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# Trigonometry || 21.03.2021

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Question 1

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

Question 2

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

^{2}θ?Question 3

If cot A = √7, find

Question 4

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 5

What is the simplified value of

Question 6

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

Question 7

What is the simplified value of ?

Question 8

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

Question 9

sin

^{2}30°+ Sin^{2}80° + Sin^{2}10° + sin^{2}90° = ?Question 10

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

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Mar 21SSC & Railway

Posted by:

Naresh RawalMember since Jul 2020

Assistant Section Officer, Central Secretariat (AIR 203) - SSC CGL 2018 #Alumnus of IIT Dhanbad