Question

please do any 2 fast please

Answer 1

1)n(S)=52
Let A be the event of diamond card..
n(A)=13
p(A)=13/52
=1/4....

ques2 ka 1
Let x and y be the two natural nos.
therefore,According to first condñ
x+y=51
According to 2 condñ
x-y=15
Adding eqñ 1 and 2 we get,
2x=66
x=33
Therefore...puttingx=33 in the eqñ 1
33+y=51
y=51-33
y=18...


ques1 ka 2
3√3x²-6x+√3=0
Comparing above eqñ with ax²+bx+c=0
a=3√3;b=-6;c=√3
∆=b²-4ac
=(6)²-4*3√3*√3
=36-36
=0
∆=0
Therefore,
Nature of the roots is real and equal