1. Q4. If the sum and difference of two angles are 145° and respectively, then the value of
largest angles in radian measure is?
(a) 0.175 (b) 8 /23 (c) 5 /12 (d) 0.43
2. Find the value of sin 30° + cos 30° + tan 30° + cot 30° ?
(a)
(b)
(c)
(d)
3. Find the value of sin 405° + cosec 405° + cos 765° + sec 765°?
(a)
(b)
(c)
(d)
4. Simplify : sin(990- )+cos ?
(a) 1
(b) 2cos
(c) 2sin
(d) 0
5. If 0< <90o, then (sin + cos ) is :
(a) Less than 1
(b) Equal to 1
(c) Greater than 1
(d) Greater than 2
6. If sin - cos = 0 and , then is equal to :
(a) /2
(b) /4
(c) /6
(d) 0
7. If , then x is equal to
(a) 1
(b)
(c) ½
(d)
8. If sec x = P, cosec x = Q, then:
