Question

Trignometry kya ha issa kya hota ha or k Iska formula ky ha

Answer 1

Trigonometry ratio : the ratio between the length of a pair of two sides of a right angled triangle is called trigonometrical ratio sin theta cos theta tan theta cosec theta sec theta and Cot theta etc are trigonometrical ratios.

Let,,
In right angled triangle ABC for acute angle , Angle B = 90° and angle A = theta.

Then,,

◆sin0=BC/AC
◆cos0=AB/AC
◆tan0=BC/AB
◆cosec0=AC/BC
◆sec0=AC/AB
◆cot0=AB/BC

Hope it helps you✌✌

Thankyou ;)

Answer 2

yeah sure for your help

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Thanks !

Here is your answer which you are searching for

Have a ever think about if you are seeing any object from some distance so what's the height of the object , if you are seeing a ship from some distance so what's the distance you are from seeing . Yeah who said it impossible to find . Only with the help of trigonometry we are able to find all this . So let's understand what the trigonometry is ??

{{{ Trigonometry }]]

>> That's made up from two words Trigo + nometry it means measure of a triangle .

>> It is discovered by a Greek mathematician Hipparchus . He is also known as father of trigonometry

>> Trigonometry is the branch of mathematics which deals with triangles , particularly triangles in a plane where one angle of the triangle is 90 degree.

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**Let us come to next part of your question **

What's a formula and where from it come ??

<< LET US LOOK AS A RIGHT ANGLE TRIANGLE . WE KNOW THAT IN A RIGHT ANGLE TRIANGLE ONE ANGLE IS OF 90 DEGREE AND THE ANGLE OPPOSITE TO 90 DEGREE IS CALLED AS HYPOTENUSE AND THE ADJACENT SIDE IS WELL KNOWN AS BASE

After a research of many years our scientist define 6 trigonometric ratios .

sin theta = $\frac{perpendicular }{Hypotenuse}$

Cos theta =$\frac{Base}{Hypotenuse}$

Tan theta =$\frac{Perpendicular}{Base }$

and rest cosec theta , sec theta , cot theta are just reverse of the following three

cosec theta = $\frac{1}{sin theta }$

Sec theta = $\frac{1}{cos theta }$

Cot theta = $\frac{1}{tantheta }$

That 's all about the ratios of the trigonometry . Have you ever think why sin is called sin , cos is called cos . I think yes ....

Let us look at the following

==> Theta is a angle without theta all trigonometric ratios is nothing . so don't forget to put theta with the trigonometric ratios

==> Sin word is originated from the sanskrit word jivaa . Jivaa is nothing but a chord in maths

==> And rest are also came from something words

==> Actually the scientists had to gave names so they had selected sin , cos ..... names

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That 's all about the ratios

Let us come to values of trigonometric function and ( 90 - theta ) concept

==> Take 0, 1 , 2 , 3 , 4 with a square and divide by 4 it's a value of sin of 0 , 30 , 45 , 60 , 90 degrees respectively .

==> as we know cos theta is the reverse of sin theta so the values are reverse of sin theta

==> tan theta is nothing but $(\frac{sin theta }{cos theta } )$

==> And rest values are just based on the trigonometric ratios we discussed before

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( 90 - theta ) concept

>> sin theta = 90 - cos theta

>> cos theta = 90 - sec theta

>> tan theta = 90 - cot theta

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That 's all about trigonometry

HOPE IT HELPFUL TO YOU !!!!!

>"<

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@ Brainlestuser