If cos X = m cos Y and where X and Y are not equal to each other and values of angle X and Y range from 0°to 90°, then

Question

TuteeHUB · Accepted Answer

tan (X + Y / 2) = [(m + 1) / (m – 1)] cot (Y – X / 2)

TuteeHUB · Answer

cot (X + Y / 2) = [(m + 1) / (m – 1)] tan (Y – X / 2)

TuteeHUB · Answer

cot (X + Y / 2) = [(m + 1) / (m – 1)] tan (X – Y / 2)

TuteeHUB · Answer

cot (X + Y / 2) = [(m – 1) / (m + 1)] tan (X – Y / 2)

1.	If cos X = m cos Y and where X and Y are not equal to each other and values of angle X and Y range from 0°to 90°, then
A.	cot (X + Y / 2) = [(m + 1) / (m – 1)] tan (Y – X / 2)
B.	tan (X + Y / 2) = [(m + 1) / (m – 1)] cot (Y – X / 2)
C.	cot (X + Y / 2) = [(m + 1) / (m – 1)] tan (X – Y / 2)
D.	cot (X + Y / 2) = [(m – 1) / (m + 1)] tan (X – Y / 2)
Answer» B. tan (X + Y / 2) = [(m + 1) / (m – 1)] cot (Y – X / 2)

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