Chapter 3# : Trigonometric Functions
Subject : Maths Class XII
Total Marks: 20 Time : 40 Min
Q 1 Find the Principal Solutions of following equation (6M)
a) tan x = -1
b) ⎷2.cos x + 1 = 0
c) ⎷3.sec x + 2= 0
d) cosec x = 2
b) ⎷2.cos x + 1 = 0
c) ⎷3.sec x + 2= 0
d) cosec x = 2
Q2 Find the general Solution of equation(any three) (6M)
a) sin 3x/2 = 0
b) cos (x+π/10) = 0
c) tan 2x/3 = ⎷3
d) ⎷3cosec x = 2
Q3 Find the general Solution of equation(any two) (8M)
a) sinx . tanx = tan x - sinx+1
b) cos x + sin x = 1
c) cot x + tan x = 2 cosec x
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