Answer:
(sec θ - tan θ)²
= sec² θ –2 sec θ tan θ + tan² θ
90 + 50 = 140
180 - 140 = 40
40 degrees is the answer
This triangle is a right angle triangle.
The side length of the square is also 1.
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➧ Which statement is true?
➫ [B] In any right triangle, the sine of one acute angle is equal to the sine of its complementary angle.

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