Question

Please help me

Answer 1

What's your question?

Answer 2

\[\int\limits ( x^2\sqrt{1+x^2})^-1 dx\]

Answer 3

is it 1/the whole expression.... power -1

Answer 4

correctly write the question

Answer 5

wait

Answer 6

\[\int\limits (x^2 \sqrt{1+x^2})^{-1}dx\ \ sorry \\ for\\ error\]

Answer 7

put x=tan t

Answer 8

how u recognised?

Answer 9

because 1+tan2t = sec2t

Answer 10

square... not 2

Answer 11

so sec2t dt = dx

Answer 12

then?

Answer 13

you try on pls

Answer 14

okay