Explanation

The cosine of 0 degrees is 1.

Explanation

Step 1: Follow the order of operations (PEMDAS/BODMAS)

First, calculate 6 × 4 × 0.5

Step 2: Calculate 6 × 4

6 × 4 = 24

Step 3: Multiply 24 by 0.5

24 × 0.5 = 12

Step 4: Add 2 to the result

2 + 12 = 14

Explanation

In the Fajr (pre-dawn) prayer, there is a significant gap between the Azaan (call to prayer) and the actual Namaz (prayer). This is because:

• Azaan is called early to announce the start of the prayer time.
• Namaz is delayed slightly to allow worshippers to wake up, perform ablution (Wudu), and prepare.

Explanation

Boyle’s Law describes the inverse relationship between the pressure (P) and volume (V) of a given mass of gas at constant temperature (isothermal conditions):

P ∝ 1/V or PV = constant

Key Points:

• Conditions: Fixed mass and temperature (no chemical reactions).
• Example: Compressing a syringe (volume ↓ → pressure ↑).

Explanation

The cosine of π radians (or 180 degrees) is -1.

Explanation

Step 1: Determine the pattern

Given 3 = 6, 6 = 30, and 5 = 20, let's find the pattern.

For 3 = 6, it could be 3 * 2 = 6.

For 6 = 30, it could be 6 * 5 = 30.

For 5 = 20, it could be 5 * 4 = 20.

Step 2: Identify the pattern

The pattern seems to be n * (n-1) or another pattern based on the given numbers.

Step 3: Test the pattern n * (n-1) or n * x

If we apply n * (n-1):

3 * (3-1) = 3 * 2 = 6

6 * (6-1) = 6 * 5 = 30

5 * (5-1) = 5 * 4 = 20

This pattern fits.

Step 4: Apply the pattern to 7

7 * (7-1) = 7 * 6 = 42

Explanation

The secant of an angle θ is defined as 1/cos(θ).

For θ = 0, cos(0) = 1.

sec(0) = 1/cos(0) = 1/1 = 1.

Explanation

• Date: February 22nd
• Celebration: Observance of the birth anniversary of Robert Baden-Powell
• Significance: Reflection on Scouting's values, achievements, and aims
• Global Observance: Celebrated by Scouting associations worldwide
• Other Names: Founders' Day

Explanation

Step 1: Calculate the square root of 9

√9 = 3

Step 2: Multiply 3 by the square root of 9

3 × 3 = 9

Explanation

The backbone of DNA consists of alternating deoxyribose sugar and phosphate groups, linked by phosphodiester bonds.

Key Information:

Sugar-Phosphate Backbone:

• Provides structural stability to the DNA double helix.
• Directionality: 5’ (phosphate) to 3’ (sugar) orientation.

Nitrogenous Bases (A, T, C, G):

• Attached to the sugar but not part of the backbone.
• Form hydrogen bonds to create base pairs (A-T, C-G).