Subject: Mathematics
Book: Maths Mastery
Sine (sin), cosine (cos), and tangent (tan) are trigonometric functions relating angles in right triangles to their side lengths. For an angle θ, sin(θ) = opposite/hypotenuse, cos(θ) = adjacent/hypotenuse, tan(θ) = opposite/adjacent. These ratios let you find missing angles or sides. For example, if a right triangle has a 30° angle and a hypotenuse of 10, you can use sin(30°) = 1/2 to find the opposite side: (1/2) = opposite/10, so opposite = 5. Trigonometric functions are indispensable in fields like surveying, physics, and engineering, making them a must-learn for geometry applications and practical measurements.
What is the sum of all even numbers between 1 and 50?
View QuestionIf x + 1/x = 5, what is the value of x^2 + 1/x^2?
View QuestionA number is increased by 20% and then decreased by 20%. What is the net change?
View QuestionIf a rectangle has a length of 10 cm and a width of 6 cm, what is its perimeter?
View QuestionIf x^3 - 3x^2 + 4 = 0, what is one root of the equation?
View QuestionWhat is the sum of all angles in a hexagon?
View QuestionIf the sides of a triangle are 6 cm, 8 cm, and 10 cm, what is the area of the triangle?
View QuestionThe base of a triangle is 10 cm and its height is 6 cm. What is its area?
View QuestionIf x:y = 2:3 and z:y = 4:3, what is x:z?
View QuestionWhat is the area of a sector of a circle with radius 14 cm and central angle 90°?
View Question