If ( + (=(/2 and ( +( =(, then tan ( equals
2(tan ( + tany)
tan( + tany
tan( + 2tany
2tan( + tany
The number of integral values of k for which the equation 7 cos x +5 sin x =2k +1 has a solution is
4
8
10
12
If the angles of a triangle are in the ratio 5:4:3, how many degrees are there in the largest angle?
75o
90o
40o
45o
/
7 cm
7.2 cm
4.8 cm
4.5 cm
If sin ?=a and sec ?+ cosec ?=b, then the value of b(a2-1) is equal to:
2a
3a
0
2ab
A tree 6 m tall casts a 4 m long shadow. At the same time, a flag pole casts a shadow 50 m long. How long is the flag pole?
75 m
100 m
150 m
50 m
A 25 m ladder is placed against a vertical wall of a building. The foot of the ladder is 7 m from the base of the building. If the top of the ladder slips 4 m, then the foot of the ladder will slide:
5 m
8 m
9 m
15 m
From the top of the building 60 m, high, the angles of depression of the top and bottom of a tower are observed to be 30o and 60o. find the height of the tower?
35 m
40 m
45 m
30 m
The reduced form of cos6 x + sin6 x + 3 cos2 x sin2 x is equal to:
2
0
Sin3 x + cos3 x2
1
? 1
cos?? cos?? cos??
cos?? + cos?? + cos??
zero
A is a skew symmetric, for ? = n? ; n I
1 + [g(x)]5
none
P ??? (x) + P ? (x)
P ?? (x) . P ??? (x)
P (x) . P ??? (x)
a constant
(
tan–1 (1)
tan–1 (2)
tan–1 (3)
tan–1 (4)
emnp
emn/p
enp/m
none
a curve of degree 2
a curve passing through the origin
a straight line with slope 2
a straight line with y intercept equal to - 2 .
4
9
16
64