Question

# Q.15 A solution of differential equation (sec? y) ix + 2x tan y=x ? is (A)2 tan y=c.ex?+x2-1 (B) tan y=ce ** + x2-1 (C) tan y=cen? + x2-1 (D) None of these

Solution 5 (se²y) & + 2x tony = x
Put tanyat
see y dya at
dx
S
if. fexor - et
te - Peter arte
(2x) e 2 dx axt,
te = 1 punt, at, to
tent, -t, te
a tay em x² _ ete to
eter
8-11t cen
Ietary =

Recent Questions
Q. 9. Calculate the volume of a sample of oxygen at a
pressure of 2.50 atm, if its volume is 3.15 L at 1.00
INCERT]
atm.
1/
59. With increase in temperature, pOH of pure water
(1) Increases
(2) Decreases
(3) May increase or decrease
147 Remain const4. A particle is projected vertically
upwards with a speed of 16ms, after
sometime, when it again passes through
point of pro6.
d) 192
A motor is rotating at a constant angular
velocity of 600 rpm. The angular displacement
per second is
5. in Antirrhinum two plants with pink flowers were
hybridized. The F plants produced red, pink and
white flowers in the propAn aiternating e.m.f is represented as V=10sin314t. The instantaneous e.m.fat t=1/600sThe velocity of a body depends on time according to the equation v = 20 + 0.112. The
body is undergoing
(a) uniform acceleratThe complete set of values of 'x' which
satisfy the inequations : 5x + 2 < 3x + 8 and
x+2 <4 is
x-1
(A) (0, 1)
(C) (-0,3)
(B)A block of mass m is placed inside a smooth hollow cylinder of radius R whose
axis Is kept horizontally. Initially system was