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Trignometry

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Joined:	19 Feb 2007
Post:	3834

22 Mar 2007 18:16:29 IST

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469

toooooo simple

None

hey guys this is too simple but i didnot got it plzzzzz help

Q)value of cos^-1(cos 7

/6) is.............................

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vikas p

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Joined: 5 Mar 2007

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22 Mar 2007 18:24:02 IST

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cos^-1(cos 210)
cos^-1(cos(180+30))
cos^-1(-cos 30)
cos^-1(-root 3/2)
-cos^-1 (root of 3/2)
-30
i think i m not wrong

Himanshu

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22 Mar 2007 18:27:33 IST

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let see the options

a)7pi/6 b)12pi/6 c)3pi/6 d)5pi/6

vikas p

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22 Mar 2007 18:28:55 IST

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it is simple.its pi-pi/6=5pi/6

vikas p

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22 Mar 2007 18:29:56 IST

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hey what is the ans

Nupur Goel

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22 Mar 2007 18:30:11 IST

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visioniit is rite..the ans is 5pi/6 only...as nw we'll add pi to 30degrees..

vikas p

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22 Mar 2007 18:30:31 IST

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gud 1

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