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L.H.S.=cos 12+cos 60+cos 84=cos 12+(cos 84+cos 60)=cos 12+2.cos 72 . cos 12=(1+2sin 18)cos 12=(1+2.(√5 -1)/4)cos 12=(1+.(√5 -1)/2)cos 12=(√5 +1)/2.cos 12 R.H.S=cos 48+cos 24=2cos 36. cos 12=2.(√5 + 1)/4)cos 12=(√5 +1)/2.cos 12 L.H.S = R.H.S
A vessel in shape of a inverted cone is surmounted by a cylinder has a common radius of 7cm this was filled with liquid till it covered one third the height of the cylinder. If the
Example Factorize x 2 - 4x + 4. If we substitute x = 1, the value of the expression will be (1) 2 - 4(1) + 4 = 1 If we substitute x = -1, the value o
what is 4 over 5 times 11 over 20
4x+3y+7=0 and 3x+4y+8=0 find the regression coefficient between bxy and byx.
AUXILIARY METHODS There are other reprographic methods which although commonly used earlier, are now mainly used for specific purposes. We think you should be aware of these me
using 5 rectangles what is the area under a curve using the function f(x)=3x+4 and boundries [0,2]
The Ravens played 25 home games this year. They had 9 losses and 2 ties. How many games did they win? Eleven games are accounted for along with the losses and ties (9 + 2 = 11)
How to find a function
We know that one has to deal with numbers in day-to-day life irrespective of his inclination and field of work. Also one cannot refute the fact
Q. Sum and Difference Identities? Ans. These six sum and difference identities express trigonometric functions of (u ± v) as functions of u and v alone.
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