`Delta ABC "में "angleA = 90^(@) , "तब " sin B , cos C " तथा " tan B ` के मान निम्नलिखित में प्रत्येक में बताइए ।
(a) `AB = 12, AC = 5.BC = 13" "(b) AB = 20. AC = 21, BC = 29`
(c ) `BC = sqrt2 . AB = AC = 1`

Explanation

`(a) sin B = 5/13, cos C = 5/13, tan B = 5/12`
`(b) sin B= 21/29 , cos C = 21/29, tan B = 21/20" "(c) sin B = 1/sqrt2 , cos C = 1/sqrt2, tan B = 1`