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for
Q8i)d^2y/dx^2= 9(3x-4)^1/2 -6
Q11(ii) dy/dx=2x(x-2) + (x-2)^2 using product rule
expand
2x^2 -4x + x^2 -4x + 4
simplify
3x^2 - 8x + 4=0
x=2/3 & x=2
therefore b=2/3
SRY i thought u meant Q7i) btw for ii) i got f inverse to be-x^2 +10x -14 am nt really sureAssalamualikum
Can someone please help me with question 7(ii), 8(i) & 11(ii).
Thanks a bunch in advance.
Q8i)d^2y/dx^2= 9(3x-4)^1/2 -6
Q11(ii) dy/dx=2x(x-2) + (x-2)^2 using product rule
expand
2x^2 -4x + x^2 -4x + 4
simplify
3x^2 - 8x + 4=0
x=2/3 & x=2
therefore b=2/3