Answer:
xy=2
Step-by-step explanation
2x + 3y =12
First divide 2 on both sides of the equation, than divide 3 on both sides of the equation.
Answer:
124
Step-by-step explanation:
When x=4, substitute 4 into the function to give f(4).
Answer:
<em>2</em>
Step-by-step explanation:
<em>I think because I had the same kind of question and the answer was 2 </em><em>,</em>
<em>hopefu</em><em>lly</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>u</em><em /><em>☺️</em>
Test results indicate that a woman is not pregnant when she is
Answer:
y=t−1+ce
−t
where t=tanx.
Given, cos
2
x
dx
dy
+y=tanx
⇒
dx
dy
+ysec
2
x=tanxsec
2
x ....(1)
Here P=sec
2
x⇒∫PdP=∫sec
2
xdx=tanx
∴I.F.=e
tanx
Multiplying (1) by I.F. we get
e
tanx
dx
dy
+e
tanx
ysec
2
x=e
tanx
tanxsec
2
x
Integrating both sides, we get
ye
tanx
=∫e
tanx
.tanxsec
2
xdx
Put tanx=t⇒sec
2
xdx=dt
∴ye
t
=∫te
t
dt=e
t
(t−1)+c
⇒y=t−1+ce
−t
where t=tanx
