Qualification > Math

C1 and C2 DOUBTS HERE!!!!!

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The Golden Girl =D:
Wa Jazaki =]

Allah yiwaf2eek :D

~ Miss Relina ~:
Excuse me anyone help with this  :( :(


if you need the answer notify me

astarmathsandphysics:
use 1-cos^2 x = sin^2 x in last part. Attached

~ Miss Relina ~:

--- Quote from: astarmathsandphysics on December 19, 2011, 11:46:57 am ---use 1-cos^2 x = sin^2 x in last part. Attached

--- End quote ---

shoudn't part (b)
 be like that (0 ,pi/9 ,2pi/9 , pi/3 )
as he asked for three equal intervals

astarmathsandphysics:
They asked for three ordinates - an ordinate is an x value. 3 ordinates means two interval, since each interval has an order at each end. Lot of marks lost cos of this.

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