(a) 225 (b) 240 (c) 210 (d)
None of these
- If tan A – tan B= x and cot B –
cot A= y, then cot (A-B) is equal to:
(a)^ +y (b) (c)^ - (d)^ +^
- The maximum value of 3 cos Ѳ
- 4 sin Ѳ is:
(a) 3 (b) 4 (c) 5 (d) none of these
- If sin Ѳ + cos Ѳ= m and sec Ѳ +
cosec Ѳ= n, then n(m+1)(m-1) is
equal to:
(a) m (b) n (c) 2m (d) 2n - If tan Ѳ= - , then sin Ѳ is equal
to:
(a) – 4/5 but not 4/5 (b) – 4/5 or
4/5 (c) 4/5 but not – 4/5 (d)
none of these
- If sin ( )=^ and cos
(α+β)=^ , where α and β are
positive acute angles, then:
(a) α= 45, β= 15 (b) α= 15, β=
45 (c) α= 60, β= 15 (d) none of
these
- Which of the following
relations is possible?
(a) sin Ѳ=^ (b) tan Ѳ= 1002 (c) c
os Ѳ= =^
, (p≠±1)^ (d) sec Ѳ=
- The value of A
( )^ + (
)^ is equal to:
(a) cos 4A (b) sin 4A (c) 1 (d)
none of these- The value of cos 1 cos 2 cos
3 .......cos 100 is equal to:
(a) 1 (b) - 1 (c) 0 (d) none of
these - The value of^
^ is equal to:^
(a) 1 (b) - 1 (c) 0 (d) none of
these - The value of √ cosec 20 - sec
20 is equal to:
(a) 2 (b)^ (c) 4 (d)^ - If sin x + cosec x= 2, then what
is the value of?
(a) 2 (b) 4 (c) 8 (d) 16 - What is the value of tan 15+
cot 15?
(a) √ (b) 2√ (c) 4 (d) 2 - If A + B + C=^ , then what is the
value of tan A tan B + tan B tan C +
tan C tan A?
(a) 0 (b) 1 (c) - 1 (d) tan A tan B
tan C - If ( )^
( )^ = k + x +
, then what is the value of k?
(a) 8 (b) 7 (c) 4 (d) 3