Algebra

1

Aditya ·2009-04-08 21:49:34

ques is not clear..!...r the brackets correct?

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Lonely 1 ·2009-04-08 21:49:40

IT IS A SIMPLE 1
I AM GETTING (A)

WHAT I USED THE FACT IS A TRIANGLE
MAKE A TRIANGLE U WILL GET THE ANSWER

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

Subash ·2009-04-08 21:50:52

now edited

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-04-08 21:52:00

yes that is the best way to do it lonely :)

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

Subash ·2009-04-08 21:52:09

but how to find cot(2tan^-1x)

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Lonely 1 ·2009-04-08 21:54:18

2 tan^-1x=tan^-12x/1-x²

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

Subash ·2009-04-08 22:01:17

so from there we get

sin{2cos^-1(1-x²/2x)}

then?

please bear with me this might be very silly :(

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Lonely 1 ·2009-04-08 22:03:42

dude u r smart
put the values if u don't want to solve it fully

and no question is silly
every thing has its own importance

if u wish to solve it fully then as u wish [1]

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-04-08 22:04:56

sin 2x = 2 sin x cos x :)

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-04-08 22:05:22

or else

sin 2x = 0 implies that 2x= n pi

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

Subash ·2009-04-08 22:09:27

is this correct?

2cos^-1x=cos^-1(2x²-1)

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

Mani Pal Singh ·2009-04-09 05:33:50

SUBASH

2cos^-1x=cos^-1(2x²-1)

ONLY WHEN 0â‰¤xâ‰¤1

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

Subash ·2009-04-09 05:35:37

k thanks manipal :)

UP 0 DOWN 0
Post on FacebookPost anonymously?

-

13 Answers

Your Answer

Similar Questions

-

13 Answers

Your Answer

Add Image

Similar Questions