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CBSE->Std 9 Questions

Total Questions 1962
simplfy the following {4 root3-2root2}{3root2+4root3}
if a=6-root35,find the value of a raise to 2+1 divide by a raise to 2
simplyfy by rationalising the denominator 2 root6 divide root2 +root 3+6 root2 divide root6+root3-8root3 divide by root6+root2
if x=root2+1 devide by root2-1 and y=root2-1 divide by root 2+1,find the value of xraise to 2+y raise to 2+xy
if 5+2root3 divide by 7+root3=a-root3b,find a and b where a and b are rational numbers
if x=1 divide by 2+root3 find the value of 2xraise to cube-7xraise 2-2x+1
if root2=1.414 and root5 =2.236,find the value of root10-root5 divide by 2root2 upto three places of decimals
How will you justify that air is a mixture and not a compound?
write the expansiona a.(2p+2q-3r)all square b.(2x-y square)all cube c.(2\3x-5\3z)all cube
ind the product (x+4\3)(x+3\4)
prove that acube + bcube + ccube-3abc =1\2(a+b+c)(a-b)square + (b-c)square-(c-a)square
ind the value o 1. (x-a)cube+(x-b)cube+(x-c)cube-3(x-a)(x-b)(x-c) when a+b+c+3x
ind the value o 1. xcube-8ycube-36xy-216 when x=2y+6
mutiply 1. xsquare+4ysquare+zsquare+2xy+xz-2yz by x-2y-z
2root2x cube+3root3y cube+root5(5-3root6xy)
p cube+27q cube+8r cube+18pqr
arrange the following in descending order of magnitude:root 90 all rise to 8,root 10 all raise to 4,root 6
What do you meant by colloidal solution?
WHAT IS THE ADAPTATION AND HABITAT OF LIZARD
WHAT IS THE ADAPTATION AND HABITAT OF OWL