1
2
2
tan
x
a
x
−
−
, |x| < a
7 2
3
1
3
2
3
tan
3
a x
x
a
ax
− 

−


−


, a > 0; 
3
3
−
<
<
a
a
x
Find the values of each of the following:
8 –1
–1 1
tan
2cos 2sin
2












9 2
–1
–1
2
2
1
2
1
tan
sin
cos
2
1
1
x
y
x
y


−
+


+
+


, |x | < 1, y > 0 and xy < 1
Rationalised 2023-24
 30
MATHEMATICS
Find the values of each of the expressions in Exercises 16 to 18