3raised to 4 x + 1 =(27)c+1
Answers
Answered by
1
Answer:
As given 3
4x+1
=(27)
x+1
⇒3
4x+1
=(3
3
)
x+1
⇒3
4x+1
=(3
3⋅(x+1)
)
⇒3
4x+1
=3
3x+3
Now we have equation for x
⇒4x+1=3x+3
⇒4x−3x=3−1
⇒x=2
Answered by
0
Correct option is
A
tan
2
x=
3
2
2
sin
4
x
+
3
cos
4
x
=
5
1
2
(sin
2
x)
2
+
3
(1−sin
2
x)
2
=
5
1
Let sin
2
x be t,t≥0
t∈[0,1]
2
t
2
+
3
(1−t)
2
=
5
1
2
t
2
+
3
1−2t+t
2
=
5
1
6
3t
2
+2−4t+2t
2
=
5
1
25t
2
−20t+10=6
25t
2
−20t+4=0
25t
2
−10t−10t+4=0
(5t−2)(5t−2)=0
t=
5
2
∴sin
2
x=
5
2
cos
2
x=1−sin
2
x=1−
5
2
=
5
3
tan
2
x=
cos
2
x
sin
2
x
=
3
2
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