Notesale: Turn your study into money

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MATHEMATICS

Q1
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)^2 + (y+
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)^2 + (+ve no
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Q2
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Q3
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So the equation has no real root
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Let`s say x=k, y=mk and z=nk where k,m,n  R
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You will get m=1/2 and n=3/4 and k is any real number
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Q5
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cis  =cos  + isin 
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Just take a line parallel with its eq
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Number of
intersection of the line and the given graph gives us the number of solutions
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g for y=
2, line and the graph have three points of intersection which is equal to the number of
solutions
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To find the shortest distance between two non-intersecting lines with equations

x-x1/l1 = y-y1/m1 = z-z1/n1 (=r1 say) and x-x2/l2 = y-y2/m2 = z-z2/n2 (=r2 say), you can
get two points on each line
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So You can find the values of r1 and

r2 which gives us both the points
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Q9
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First develope a blueprint of the solution if you`ve understood and
analyzed the problem
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g
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You can think useful shortcuts and
1

must memorize important arithmetic computation, multiplication tricks and of course, all
formulae
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Q10
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8
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8*0
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96
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