Answer:
-1
Step-by-step explanation:
from secθ= 2x/1 = hypotenuse/ adjacent
adjacent = 1 —(1)
from tanθ = 2/y = opposite/adjacent
opposite = 2
adjacent= y =1 from (1)
from Pythagoras 1, 2, √3
then find sec²θ = (√3)² = 3
tan²θ = 2² = 4
sec²θ - tan²θ = 3-4 = -1
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Answers & Comments
Answer:
-1
Step-by-step explanation:
from secθ= 2x/1 = hypotenuse/ adjacent
adjacent = 1 —(1)
from tanθ = 2/y = opposite/adjacent
opposite = 2
adjacent= y =1 from (1)
from Pythagoras 1, 2, √3
then find sec²θ = (√3)² = 3
tan²θ = 2² = 4
sec²θ - tan²θ = 3-4 = -1