Memorizing multiplication tables beyond 20 helps significantly in increasing your calculation speed for competitive exams like SSC, Bank PO, and CAT. Let's look at the multiplication tables for the numbers 26 and 37.
Mental Math Trick for 26: Multiply by 25 and add the number itself (e.g., 26 x 4 = (25x4)+4 = 104).
Magic of 37: 37 x 3 = 111, 37 x 6 = 222, 37 x 9 = 333.
| Multiplication | Result |
|---|---|
| 26 × 1 | 26 |
| 26 × 2 | 52 |
| 26 × 3 | 78 |
| 26 × 4 | 104 |
| 26 × 5 | 130 |
| 26 × 6 | 156 |
| 26 × 7 | 182 |
| 26 × 8 | 208 |
| 26 × 9 | 234 |
| 26 × 10 | 260 |
Fun Fact about 37: When you multiply 37 by multiples of 3 (3, 6, 9), you get repeating digits (111, 222, 333)!
| Multiplication | Result |
|---|---|
| 37 × 1 | 37 |
| 37 × 2 | 74 |
| 37 × 3 | 111 |
| 37 × 4 | 148 |
| 37 × 5 | 185 |
| 37 × 6 | 222 |
| 37 × 7 | 259 |
| 37 × 8 | 296 |
| 37 × 9 | 333 |
| 37 × 10 | 370 |
26 multiplied by 5 is 130.
37 multiplied by 3 is 111.
Co-prime Numbers — Definition, Examples, and Properties
Co-prime numbers are pairs of numbers whose HCF is 1. Examples: (8, 15), (4, 9), (1, n). They need not be prime individually. Learn properties and FAQs.
Value of cos 225° and sin 165°
Learn how to calculate the exact values of cos 225 and sin 165 using trigonometric identities and quadrant rules.
Find the Value of: cos(24°) + cos(55°) + cos(125°) + cos(204°)
Learn the step-by-step solution to the famous trigonometry problem: cos(24) + cos(55) + cos(125) + cos(204). Understand ASTC quadrant rules to get the answer 0.
Cos2A Formula (Double Angle Identity)
Master the cos2A formula. Learn all three variations of the double angle identity for cosine in terms of sin, cos, and tan.
What is the Value of cos 37°?
cos 37° = 4/5 = 0.8 (standard approximation). Exact value: cos 37° ≈ 0.7986. Derived from the 3-4-5 right triangle. Used in physics problems.
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