Question

if sin gama sin beta -cos gamma sin beta+1 =0 then find the value of cot gama tan beta​

Answer 1

(a) X=[MaLbTc]

Maximum percentage error =aα+bβ+cγ

Answer 2

α, β, γ are zeros

α,β,γ are zeros of cubic polynomial x3−12x2+44x+c. If α,β,γ are in A.P. find the value of c

A

13

B

−23

C

−48

D

19

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ANSWER

α,β and  γ are zeros of cubic polynomial and are in AP.

So, Let β=a ; α=a−d & γ=a+d

Polynomial=x3−12x2+44x+c

Sum of roots=1−(−12)=12

So,a−d+a+a+d=12

3a=12a=4

Sum of products of two consecutive roots=44.

a(a−d)+a(a+d)+(a−d)(a+d)=44a2−ad+a2+ad+a