MATHS A-LEVEL OCR
MEI (B)
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,Certainly! Here are the numbered questions based on the information you provided, along
with their respective answers:
1. **Quadratic Formula**
\(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\)
*Solution for solving quadratic equations.*
2. **Pythagorean Theorem**
\(a^2 + b^2 = c^2\)
*Relation between the sides of a right-angled triangle.*
3. **\((a^x)(a^y)\)**
\(a^{x + y}\)
*Product rule of exponents.*
4. **\(\frac{a^x}{a^y}\)**
\(a^{x - y}\)
*Quotient rule of exponents.*
5. **\((a^x)^y\)**
\(a^{xy}\)
*Power of a power rule.*
6. **\(x = a^n\)**
\(n = \log_a x\)
*Expressing exponential in logarithmic form.*
7. **\(\log_a x + \log_a y\)**
, \(\log_a xy\)
*Logarithm of a product.*
8. **\(\log_a x^k\)**
\(k \log_a x\)
*Power rule of logarithms.*
9. **Straight line formula**
\((y - y_1) = m(x - x_1)\)
*Point-slope form of a line.*
10. **Perpendicular gradients**
*Negative reciprocals of each other.*
11. **General term of AP**
\(U_n = a + (n - 1)d\)
*nth term of an arithmetic progression.*
12. **General term of GP**
\(U_n = ar^{n-1}\)
*nth term of a geometric progression.*
13. **Sine rule**
\(\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}\)
*Relates sides and angles in any triangle.*
14. **Cosine rule**
\(a^2 = b^2 + c^2 - 2bc \cos A\)
MEI (B)
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
,Certainly! Here are the numbered questions based on the information you provided, along
with their respective answers:
1. **Quadratic Formula**
\(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\)
*Solution for solving quadratic equations.*
2. **Pythagorean Theorem**
\(a^2 + b^2 = c^2\)
*Relation between the sides of a right-angled triangle.*
3. **\((a^x)(a^y)\)**
\(a^{x + y}\)
*Product rule of exponents.*
4. **\(\frac{a^x}{a^y}\)**
\(a^{x - y}\)
*Quotient rule of exponents.*
5. **\((a^x)^y\)**
\(a^{xy}\)
*Power of a power rule.*
6. **\(x = a^n\)**
\(n = \log_a x\)
*Expressing exponential in logarithmic form.*
7. **\(\log_a x + \log_a y\)**
, \(\log_a xy\)
*Logarithm of a product.*
8. **\(\log_a x^k\)**
\(k \log_a x\)
*Power rule of logarithms.*
9. **Straight line formula**
\((y - y_1) = m(x - x_1)\)
*Point-slope form of a line.*
10. **Perpendicular gradients**
*Negative reciprocals of each other.*
11. **General term of AP**
\(U_n = a + (n - 1)d\)
*nth term of an arithmetic progression.*
12. **General term of GP**
\(U_n = ar^{n-1}\)
*nth term of a geometric progression.*
13. **Sine rule**
\(\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}\)
*Relates sides and angles in any triangle.*
14. **Cosine rule**
\(a^2 = b^2 + c^2 - 2bc \cos A\)
