यदि `A+B =225^(@) `  तो सिध्द कीजिए कि:   `(cot A )/(1+cot A) (cot B)/(1+
Channel: Doubtnut
Date: 2020-03-29

यदि `A+B =225^(@) `  तो सिध्द कीजिए कि:  (cot A )/(1+cot A) (cot B)/(1+cot B) =(1)/(2)`