1,199 prompts matching "how many ways can a committee of 4 be chosen from 10 people"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Multiply matrices step by step #1
Show me how to multiply A=[[2,1],[0,-3]], B=[[1,-2],[4,3]] using the row-times-column meth
Multiply matrices step by step #4
Show me how to multiply A=[[4,1,-2],[0,3,1],[2,-1,5]], B=[[1,0,2],[-1,2,3],[0,1,-1]] using
Multiply matrices step by step #5
Show me how to multiply A=[[2,-1],[3,0]], B=[[1,4],[-2,5]] using the row-times-column meth
Evaluate a 3x3 determinant by expansion #1
Give me a 3x3 matrix like A=[[1,2,3],[0,1,4],[5,6,0]] and ask me to evaluate its determina
Evaluate a 3x3 determinant by expansion #2
Give me a 3x3 matrix like A=[[2,0,-1],[3,1,2],[-1,4,0]] and ask me to evaluate its determi
Evaluate a 3x3 determinant by expansion #5
Give me a 3x3 matrix like A=[[5,-1,0],[2,3,1],[-2,0,4]] and ask me to evaluate its determi
Solve a 3x3 simultaneous equation system with Cramer's rule #3
Use Cramer's rule to solve the system x - 2y + z = -1, 3x + y - z = 8, 2x - y + 3z = 5. Sh
Explain why a matrix with zero determinant has no inverse
I am in SS 3. Explain why a matrix cannot be inverted when its determinant is zero, and gi
Spot my mistake in finding a matrix inverse
I found the inverse of a 2x2 matrix but I think I mixed up the sign or swapped the wrong d
Solve simultaneous equations using an inverse matrix #3
Show me how to write 3x - 2y = 4 and x + y = 6 as a matrix equation, find the inverse of t
Solve a 3x3 system using the inverse matrix method #1
Show me how to solve the system x+y+z=6, 2x-y+z=3, x+2y-z=2 by writing it as AX=B, finding
Resolve a force into horizontal and vertical components #1
Give me a resolution of forces problem with a force of 10N acting at 30 degrees to the hor
Projectile motion problem #4
I am in SS 3. Give me a projectile motion problem where a ball is projected horizontally a
Common Mistakes: A binary operation defined by arithmetic modulo n
Act as my WAEC Further Mathematics coach. I am in SS 3. Show me the mistake candidates mos
Common Mistakes: Solving an equation in which the unknown sits under a root
Act as my WAEC Further Mathematics coach. I am in SS 3. Show me the mistake candidates mos
Common Mistakes: Solving an exponential equation using logarithms
Act as my WAEC Further Mathematics coach. I am in SS 3. Show me the mistake candidates mos
Common Mistakes: Proving that a quadratic expression is positive for every real x
Act as my WAEC Further Mathematics coach. I am in SS 3. Show me the mistake candidates mos
Common Mistakes: Adding, subtracting and multiplying two polynomials
Act as my WAEC Further Mathematics coach. I am in SS 3. Show me the mistake candidates mos
Common Mistakes: Three roots in geometric progression in a cubic
Act as my WAEC Further Mathematics coach. I am in SS 3. Show me the mistake candidates mos
Common Mistakes: Arrangements restricted at the first or the last place
Act as my WAEC Further Mathematics coach. I am in SS 3. Show me the mistake candidates mos