1/(x^2 + 5x + 10) রাশিটির সর্বোচ্চ মান কত? | শ্রেণী 14 | পূর্ববর্তী বছরের পেপ...

3/(5x)-2/(3x)=1/10

I. x^(2) - 5x - 14 = 0" "II. Y^(2) + 7y + 10 = 0

(i) x^(2) - 5x-14 = 0 (ii) 2y^(2) +11y + 14 = 0

(2)/(5)=(x-1)/(10) then x=

If 5x + 2(x + 7) = 14x – 7 . Find x

(c) Factorize x^(2) -5x -14

If x^2+1/x^2=14 then x+1/x=

If 5 ((x)/(6) + (1)/(2)) = 5x - 10 , then x = ____

If y = tan ^ (- 1) ((1) / (1 + x + x ^ (2))) + tan ^ (- 1) ((1) / (x ^ (2) + 3x + 3)) + tan ^ (- 1) ((1) / (x ^ (2) + 5x + 7)) then y '(0) = (i) - (3) / (10) (ii) - (5) / (10) (iii) - (7) / (10) (iv) - (9) / (10)