/
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
For an acute angle ?, sin ? + cos ? takes the greater value when ? is:
30o
45o
60o
90o
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
radians is equal to:
108
54
100
81
/
None of the above
General solution of the equation is ____.
None of the above
If then ____.
____.
____.
If , then ____.
0
1
2
3
The principal value of ____.
____.
0
____.
0
½
1
____.
1
2
3
If and , then ( is equal to ____.
/
____.
If then____.
– 4/5 but not 4/5
– 4/5 or 4/5
4/5 but not – 4/5
None of the above
If and, then ____.
m
n
2m
2 n