Saved Bookmarks
| 1. |
90. If cosecA + cot A-t, then tan A-215162143 |
|
Answer» (cosec A + cot A) x (cosec A - cot A)/(cosec A - cot A) --->11/2 ie (cosec^2 A - cot^2 A) /(cosec A - cot A ) --->11/2 now cosec^2 A - cot^2 A is 1 so 1/(cosecA - cotA) --->11/2 so cosec A - cot A --->2/11 cosec A + cot A ---> 11/2 subtraction gives - 2 cot A --->2/11 -11/2---> -117/22 so cot A ---> 117/44 now tan A ---> 1/cot A ---> 44/117 |
|