9 (sin x – cos x) (sin x – cos x), 
3
4
4
x
π
π
<
<
10 xx + xa + ax + aa, for some fixed a > 0 and x > 0
Rationalised 2023-24
CONTINUITY AND DIFFERENTIABILITY
145
11 (
)
2
2 3
3
x
xx
− +x
−
, for x > 3
12