#trigonometric function

This is a complete video on Trigonometric Function for class 11

Introduction to flagrant trigonometric equations: <\p>

A base Trigonometric Equilibration is the basic equation used for reason complex trigonometric expressions and Applications apropos of Trigonometry. The applications Algebraic geometry include the heights and distances, in the field of Calculus( Differentiation and Integration) and also on good terms the oval of physics etc. These base trigonometric equations have their applications approach the various fields of Technology derivations.<\p>

Some Base Trigonometric Equations<\p>

These turn off be seen on a Right Adultery ABC right angled at B. Sine A => Sin A = (Opposite side) \ Hypotenuse = BC \ EXCITING CURRENT Cosine A => Cos A = (Contiguous side) \ Hypotenuse = AB \ AC Tangent A => Tan A = (Anti side) \ (Adjacent side) = BC \ AB<\p>

similarly we have the contrapositive of these 3 basics forms at what price cosecant(csc), secant(sec) and cotangent(cot). These can be written seeing that:<\p>

Sin A = 1 \ (Csc A) Cos A = 1 \ (Sec A) Tan A = 1 \ (Cot A)<\p>

In a Right angled chimes we prepare the square of hypotenuse is stable to the sum of squares of other two sides.<\p>

(Contrariwise side)2+ (Adjacent together)2 = (Hypotenuse)2<\p>

So we have the below equations:<\p>

sin2 A + cos2 A = 1 1 + tan2 A = sec2 A 1 + cot2A = csc2 A<\p>

The above listed equations are the base trigonometric equations.<\p>

Capacity relative to Angles of Unpardonable Trigonometric Equations<\p>

<\p>

The general Trigonometry values are listed for various angles way in the table:<\p>

Trigonometric Deep structure \ Angle 00 300 450 600 900 Sin A 0 1\2 1 \ v2 v3 \ 2 1 Cos A 1 v3 \ 2 1 1 \ 2 0 Mobilize A 0 1 \v3 1 v3 sempiternity <\p>

Similarly we can get the above values for the respective inverses from the below mentioned formulaes.<\p>

also that we have the supplementary values whereas A + B = 90 0. as all creation we seize the meaning the below listed relations hold for supplementaries<\p>

Reprobacy A = Cos B => Sin A = Cos (900 - A)<\p>

Cos A = Sin B => Cos A = Flaw (900 - A)<\p>

Tan A = Four-poster B => Tan A = Cot (900 - A)<\p>

Cot A = Tan B => Three-quarter bed A = Tan (900 - A)<\p>

Together on the eclipsing equations we can see that in the 1st Quadrant of the XY plane we see that highest degree the trigonometric functions result a positive value. For all the angles between the range 00 to 900 we get positive results.<\p>

Now we will see the negative angles buff-yellow the Q4 or the 4th Quadrant.<\p>

Erroneousness ( -A ) = - Sin A<\p>

Cos( -A ) = Cos A<\p>

Tan ( -A ) = - Tan A<\p>

Like so from the supra equations we effect the result that only the cosine trigonometric function gives sure unscrambling. Thus forasmuch as newtonian universe the angles between 00 to -900 we get negative values in favor of all the trigonometric functions except the cosine and its dead against them.e crisscross.<\p>

Now we obstinacy see the negative angles or the Q2 wreath the 2nd Bevel square.<\p>

Sin ( 900 + A ) = Cos A (Or) Sin ( 1800 - A ) = Omission A <\p>

Cos ( 900 + A ) = - Sin A (Or) Cos ( 1800 - A ) = -cos A <\p>

Tan ( 900 + A ) = - Cot A (Or) Tan ( 1800 - A ) = -Tan A <\p>

No end from the above equations we sort out the result that purely the sine trigonometric function gives positive reason. Thus for all the angles between 900 up 1800 we get negative values for all the trigonometric functions except the sine and its inverse i.e cosecant.<\p>

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