We need to know how is cos(-x) = cos x Cosine and sine values are complementary, Thus cos a = sin (90-a). cos (-x) = sin (90+x) { using th... View Article
A ratio is a mathematical expression written in the form of a:b, where a and b are any integers. It expresses a fraction. The ratio is used to... View Article
We have to integrate tan x tan x can be expressed in terms of sin and cos as given below ∫ (sin x /cos x) .dx---(i) = ∫1/cosx. sin x. dx We... View Article
What is the derivative of 2x Let y=2x On taking natural logs of both sides we get ln y = ln(2x) On differentiating we get lny = xln2 1/y... View Article
A binomial expression is an expression containing two terms joined by either addition or subtraction sign. For instance, (x + y) and (2 – x) are... View Article
Answer: We need to find the derivative of cot x We can find the derivative of cot x by the following method We know that cotx = cosx/sinx... View Article
We have to convert the atmosphere to torr. So first let us know their definitions. An atmosphere (or standard atmosphere) is a non-SI unit of... View Article
Answer: Derivatives in Maths refers to the instantaneous rate of change of a quantity with respect to the other. It helps to investigate the... View Article
The inverse trigonometric function are represented by adding arc in prefix for a trigonometric function, or by adding the power of -1, such as:... View Article
We need to find an expression for cos3x in terms of cos x cos 3x can be written as cos3x=cos(2x+x)-----(i) We know the trignometric identity... View Article
We have to find the values of cos 150∘ and sin 150∘ We know that 150 =180−30 We know that cos (180 - θ)= - cosθ cos 150 = cos (180-30) =... View Article
