Question

If sinA + cosecA=3, find the value of sin^2A+cosec^A

Answer 1

Answer:

7

Step-by-step explanation:

sinA + cosecA=3

Squaring both side

$(sinA+cosecA)^{2} = 3^{2}$

user formula $(a+b)^{2} = a^{2} + 2ab + b^{2}$

$sin^{2}A + 2*sinA * cosecA + cosec^{2} A$ = 9

$sin^{2}A + 2*1 + cosec^{2} A = 9$

$sin^{2}A + cosec^{2}A = 9 -2\\sin^{2}A + cosec^{2}A = 7$

Answer 2

Answer:

hi friend mark it as brainliest

Step-by-step explanation: