Question

Saman gyat karna hai 2x + x equal 36

Answer 1

Answer:

2x + x = 36

3x = 36

x = 36/3

x = 12

Answer 2

Explanation:

Correct option is C)

y=tanxtan2xtan3x

We know

tan3x=tan(x+2x)

=

1−tanx.tan2x

tanx+tan2x

By cross multiplication, we get

tan3x−tanxtan2xtan3x=tanx+tan2x

tanxtan2xtan3x=tan3x−tan2x−tanx=y

dx

dy

=

dx

d

(tan3x−tan2x−tanx)

=3sec

2

3x−2sec

2

2x−sec

2

x Option (c)