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Form 3 Questions and Answers on Formulae

Form 3 Questions and Answers on Formulae.
In this course, several questions on the sub-topic formulae will be solved. Solutions are available in video format.

Lessons (22)

1. Make x the subject of the formula #N = P/ sqrt((ax + bx))#
3m 36s
2. Make n the subject of the formula #E = sqrt ((x(n-x))/(n-1)) #
4m 18s
3. Make P the subject of the formula #A = (-EP)/sqrt(P^2 + N)#
0m 0s
4. The volume V #cm^3# of an object is given by #V = 2/3 pi r^3 (1/(sc^2)-2)# Express c in terms of #pi#, r, s and V
5m 51s
5. Make V the subject of the formula #T= 1/2m(u^2-v^2)#
2m 45s
6. Given that #y = (b - bx^2)/(cx^2 - a)# make x the subject
3m 40s
7. Given that log #y = log(10x^n)#, make n the subject
3m 26s
8. Make x the subject of the formula #P = ((xy)/(z + x))^(1/2)#
3m 17s
9. Make x the subject of the formula: #S = W sqrt(a^2 - x^2)#
3m 26s
10. Make y the subject of the formula: #P = (xy) /(x - y) #
0m 0s
11. Make c the subject of the formula: #T = x sqrt (c^2 + d^2)#
3m 15s

12. Make P the subject of the formula #P^2 = (P-q)(P-r)#
3m 26s
13. Make s the subject of the formula #sqrt p = r sqrt(1 - as^2)#
3m 21s
14. Make b the subject of the formula: #(bd)/sqrt ((b^2 - d))#
3m 44s
15. Given that #y = (2x - z)/(x + 3z)#, express x in terms of y and z.
2m 55s
16. Make h the subject of the formula #q = (1 + rh)/(1 - ht)#
2m 41s
17. Make x the subject of the equation: #3y = y + (p)/(q + 1/x)#
4m 21s
18. Make s the subject of the formula: #w = root 3(s + t)/(3) #
2m 34s
19. Make n the subject of the equation: #r/p = m / sqrt (n - 1)#
0m 0s
20. Make d the subject of the formula, #P = 1/2 mn^2 - (qd^2)/n#
3m 7s
21. Make s the subject of the formula: #w = root 3 ((s + t)/(s))#
1m 42s
22. Make t the subject of the formula #s = sqrt((3d(t-d))/(8))#
2m 43s