To determine the probability of getting exactly 1 head when flipping a coin 3 times, we need to consider the total possible outcomes and the successful outcomes for our case. When flipping a coin, each flip has two possible outcomes: heads (H) or tails (T). Thus, when flipping the coin 3 times, the total number … Read more
To find the zeros of the function f(x) = x² + 5x + 5, we can use the quadratic formula, which is given by: x = (-b ± sqrt(b² – 4ac)) / 2a In this case, the coefficients are: a = 1 (the coefficient of x²) b = 5 (the coefficient of x) c = … Read more
To convert an angle from degrees to radians, you can use the following formula: Radians = Degrees × (π / 180) For example, let’s say you have an angle of x degrees. To find its radian measure, you simply multiply x by π / 180. This conversion is essential because many mathematical functions and applications, … Read more
To find coterminal angles, we need to understand that two angles are coterminal if they differ by a multiple of 2π (360 degrees). For an angle given in radians, such as 3π/4, we can find coterminal angles by either adding or subtracting 2π. Let’s start with the given angle: 3π/4 Now, we can find two … Read more
A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In other words, a prime number has exactly two divisors: 1 and itself. Looking for prime numbers between 40 and 50, we can check each number individually: 41: This number can only be divided evenly … Read more
Trigonometric Ratios for Specific Angles Understanding the values of trigonometric ratios for key angles is essential in trigonometry. Below are the values for the angles 120°, 135°, 150°, 180°, and 270° for all six trigonometric ratios. 1. Angle: 120° Sine (sin): √3/2 Cosine (cos): -1/2 Tangent (tan): -√3 Cosecant (csc): 2/√3 Secant (sec): -2 Cotangent … Read more
To express a complex number in trigonometric form, we typically use the format: z = r (cos θ + i sin θ) where: r is the modulus (magnitude) of the complex number θ is the argument (angle) of the complex number Let’s break down the steps to express the complex number 3 + 3i in … Read more
To solve the equation x4 + 6×2 + 5 = 0 using u-substitution, we first make a substitution that simplifies the equation. Let u = x2. Then, we can express x4 as u2, leading to the transformation of the equation: u2 + 6u + 5 = 0 This quadratic equation can now be solved using … Read more
Arranging a set of rational numbers from least to greatest involves a few straightforward steps. Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. Here’s how you can effectively sort them: Understanding Rational Numbers: Ensure you know what rational numbers are. Examples … Read more
To find three irrational numbers between √2 and √3, we first need to establish the approximate values of these square roots. The value of √2 is approximately 1.414 and √3 is approximately 1.732. Knowing this, we can look for numbers that fall between these two square roots. 1. **Number 1:** One straightforward example is the … Read more