Math, asked by maansi34, 4 months ago

2. Prove that Cot thita + Tan thita = Cosec thita x Sec thita ​

Answers

Answered by albyak2001
1

Step-by-step explanation:

In R. H. S

cot A+tan A

we can write this as cos A ÷ sin A +sin A ÷ cosA

so,

cosA²+sinA²÷sinA*×cosA

cos A²+sinA²=1

1÷sinA×cosA

now,

1÷sinA×1÷cosA

cosecA × secA

I HOPE THIS WILL HELP YOU MARK ME BRAINLIEST

Answered by MathsLover00
3

  \pink{to \:  \:  \: proove :} \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \ \\  \\ cot( \alpha )  +  \tan( \alpha )  =  \csc( \alpha )  \sec( \alpha )  \\  \\  \green{proof : } \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  \\  \blue{lhs} =  \cot( \alpha ) +  \tan( \alpha ) \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \\  \\  =  \frac{ \cos( \alpha ) }{ \sin( \alpha ) }  +  \frac{ \sin( \alpha ) }{ \cos( \alpha ) }   \:  \:  \:  \: \\  \\  =  \frac{ { \cos( \alpha ) }^{2}  +  { \sin( \alpha ) }^{2} }{ \sin( \alpha ) \cos( \alpha )  }  \\  \\   = \frac{1}{ \sin( \alpha )  \cos( \alpha ) } \:  \:  \:  \:  \:  \:  \:  \:  \:   \\  \\  =  \frac{1}{ \sin( \alpha ) }  \times  \frac{1}{ \cos( \alpha ) }   \:  \: \\  \\  =  \csc( \alpha )  \sec( \alpha )  \:  \:  \:  \:  \:  \:  \:   \\  \\  =  \red{rhs} \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  \\ hence \:  \:  \: prooved \\  \\  \pink{cot( \alpha )  +  \tan( \alpha )  =  \csc( \alpha )  \sec( \alpha )}

HOPE IT HELPS TO U

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