help@askiitians.com

+91-87964 74404

Grade 10Trigonometry

tan square thita/(1+tan square thita). +. cot square thita/(1+cot square thita). =1

Abhishek kumar

9 Years agoGrade 10

1 Answer

Yarra Deva

9 Years ago

tan^2 $\Theta$ /(1+tan^2 $\Theta$ ).+.cot^2 $\Theta$ /(1+cot^2 $\Theta$ )

put cot^2 $\Theta$ =1/tan^2 $\Theta$ (since $\Theta$ not belongs to $\pi$ /2 and 0) (since cot and tan functions are undefined at 0 and $\pi$ /2 )

=tan^2 $\Theta$ /(1+tan^2 $\Theta$ ) + (tan^2 $\Theta$ * 1/tan^2 $\Theta$ )/(1+tan^2 $\Theta$ )

=tan^2 $\Theta$ /(1+tan^2 $\Theta$ ) + 1/(1+tan^2 $\Theta$ )

=1

In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.

trigonometry

1 Answer Available

Last Activity: 3 Years ago

Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720

trigonometry

1 Answer Available

Last Activity: 4 Years ago

To prove : Cosec(45 degree - A)Cosec(45 degree + A) = 2SecA

trigonometry

1 Answer Available

Last Activity: 4 Years ago

Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)

trigonometry

1 Answer Available

Last Activity: 4 Years ago

WHAT IS THE LIMIT WHEN X TOWARDS TO 0 OF sin6x/5x ? lim𝑥→0 𝑠𝑖𝑛6𝑥/5𝑥

trigonometry

1 Answer Available

Last Activity: 4 Years ago

View all Questions