m=15+√26
m=15+√26×5−√265−√26
=5−√26(5)2−(√26)2 (1 mark)
=5−√2625−26
=√26−5
(1 mark)
m2=(√26−5)2
=26−10√26+25
=51−10√26
If m=13−2√2 then,m2= _______.
If m=1n=2 and p=-3. Find the value of :
2mn2-15m2n+p
If m and σ2 are the mean and variance of variable X, whose distribution is given by:
Then: