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Cos Theta is one of the six trigonometric functions. It is defined by the ratio of the adjacent side to the hypotenuse of the triangle where theta is an acute angle.
Definition of Cos Theta The Cos Theta Formula is a Mathematical formula used to calculate the Cosine of an angle. It can be abbreviated as Cos(θ) and looks like this: Cos(θ) = adjacent/hypotenuse. In other words, it takes the length of the adjacent side (the side next to the angle...
Taking the cosine of an angle gives the ratio of theadjacentside divided by thehypotenuse. Side "b" is adjacent to the angle, and the hypotenuse is still side "c", the cosine of theta will be equal to b/c. $$\rm \cos(\theta) = \frac{adjacent}{hypotenuse} = b/c $$ ...
Q1. If sin θ = 6/ 13, find out the value of cos θ. We know the formula that, cos2θ = 1 – sin2θ cos2 θ = 1 – (6/ 13)2 cos2θ = 1 – 36/ 169 cos2θ = 133/ 169 cos θ = (133)1/2/ 13 Q2. If tan θ /2 = 5/ 8, find out the value of cos θ....
Trigonometry is crucial topic in the Quantitative Aptitude section of exams like SSC, Railways, and Defense. Explore trick related to trigonometry in the Article.
Explanation:Calculates r, the Pearson product-moment correlation coefficient of a dataset. COS Syntax:COS(angle) Explanation:Returns the cosine of an angle provided in radians. COSH Syntax:COSH(value) Explanation:Returns the hyperbolic cosine of any real number. ...
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The double angle formula can find the value of twice an angle under sine, cosine, or tangent. In other words, given an angle {eq}\theta {/eq}, the double angle formula is used to calculate {eq}\sin 2\theta,~\cos 2\theta,~\tan 2\theta {/eq}. These identities make it possible ...
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