Question

1
2. Find the square of 2x + 1/x
+1.​

Answer 1

Answer:

Answer

Given ,

2x+1

−

2x−1

=1

⇒

2x+1

=1+

2x−1

squaring both sides, we get

⇒2x+1=1+2x−1+2

2x−1

⇒0=−1+2

2x−1

⇒2

2x−1

=1.

squaring both sides,we get.

4(

2x−1

)

2

=1

⇒2x−1=

4

1

⇒2x=

4

1

+1

⇒2x=

4

5

⇒x=

8

5

∴

x

2

−1

=

4×(

8

5

)

2

−1

=

4×

64

25

−1

=

64

100−64

=

64

36

=

8

6

=

4

3

Answer 2

Answer:

4

Explanation:

$\frac{2x+1}{x+1}$

$\frac{4x^{2} +1}{x^{2} +1}$

4