Question

x Cos A=1 and y Cot A=1 prove that x^2- y^2 =1​

Answer 1

x cos A =1

x = 1/cos A

x = sec A

y cot A = 1

y = 1/ cot A

y = tan A

so, x^2- y^2 =1

sec^A - tan^A= 1

Answer 2

Answer:

it's your answer hope this helps you