Messages posted by kevin

the roots of the qudratic equation 8x² - 10 x + 3 = 0 are $\alpha$ and $\beta$ ² where $\beta$ ²> 1/2,then the equation whose roots are $(\alpha+ i\beta)$ ¹⁰⁰ and $(\alpha - i\beta)$ ¹⁰⁰ is

x² - x +1=0

x²+x+1=0

x²-x-1=0

x² +x -1=0

and at last as it is always..... rates are assured.....

p.s. the question is correct . i have checked it twice....

the equation :

3^sin2x+2cos2x+ 3^{1-sin2x+2sin2x} =28 is satisfied for the values of x given by:

cos x=1

tanx = -1

tanx =1

none of these

guys...... rates are assured......

if arc cos x/a + arc cos y/b =£

prove that : x^2/a^2 - 2xy/ab cos£ + y^2/b^2 = sin^2£

rates assured...

prove that f : R

R , given by f(X)=2x, is one-one and onto

cos^4

/8+cos^4 3

/8+ cos^4 5

/8 +cos^4 7

/8=3/2

what are the total number of divisors of 5400 and the sum of divisors which have 0 at their unit place?

and at last as it is always..... rates are assured.....

guys...... rates are assured......

if arc cos x/a + arc cos y/b =£

prove that : x^2/a^2 - 2xy/ab cos£ + y^2/b^2 = sin^2£

rates assured...

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