-1 [email protected]Guru Asked: March 8, 20212021-03-08T19:34:53+05:30 2021-03-08T19:34:53+05:30In: CBSE If Sin A = 3/4, Calculate cos A and tan A. -1 One of the most important question of NCERT of class 10 Based on Trignonetry Chapter for CBSE BOARD. If Sin A = 3/4, Calculate cos A and tan A. class 10ncert solutiontrignometry Share Facebook 1 Answer Voted Oldest Recent MathsMentor Guru 2021-03-14T11:42:19+05:30Added an answer on March 14, 2021 at 11:42 am This answer was edited. Given sinA=3/4 Or p/h=3/4 LetÂ p=3k and h=4k Now By Pythagoras theorem p2 + b2 =h2 9k2 + b2 =16k2 b2 = 7k2 Or Â b=+kâˆš7 Now CosA=b/h=âˆš7/4 Now tanA=SinA/CosA =3/âˆš7 1 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Leave an answerLeave an answerCancel reply Featured image Select file Browse Add a Video to describe the problem better. Video type Youtube Vimeo Dailymotion Facebook Choose from here the video type. Video ID Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". Click on image to update the captcha. Save my name, email, and website in this browser for the next time I comment. Related Questions n the figure, BDC is a tangent to the given circle at point D such that BD = ... O is the centre of a circle of radius 8 cm. The tangent at a point A on ... An army contingent of 616 members is to march behind an army band of 32 members in a ... Show that any positive odd integer is of the form 6q + 1, or 6q + 3, or ... Use Euclidâ€™s division algorithm to find the HCF of: i. 135 and 225 ii. 196 and 38220 iii. ...

This answer was edited.Given sinA=3/4

Or p/h=3/4

LetÂ p=3k and h=4k

Now By Pythagoras theorem p2 + b2 =h2

9k2 + b2 =16k2

b2 = 7k2

Or Â b=+kâˆš7

Now CosA=b/h=âˆš7/4

Now tanA=SinA/CosA

=3/âˆš7