9^(x+2)= 36
sin 45° cos 45°
2y−y=5+1
2
𝑦
−
=
5
+
1
cos 180° - sin 180°
3a + 5b : 7b-5a
hcf of the following monomial
7p^2qr^2, 21p^2q^2r^4
1/2*3X-2
y=-3x/2+7/2
(625)5d−4/(5 to the power of d) - (5 to the power of d-1)