Question

if x= 2sec² and y= 2tan² -1 find x-y ​

Answer 1

Answer:

x-y=3

Step-by-step explanation:

since , sec^2theta - tan^2theta = 1

Answer 2

Answer:

0

Step-by-step explanation:

2sec²-(2tan²-1)

2sec²-2tan²+1

2sec²-2sec² (tan²+1=sec²)

0

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