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



Discussion

No Comment Found