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Question
The value of `(1/2 tan^2 45° - cos^2 60°)` is ______.
Options
0
`-1/2`
`1/4`
`-1/4`
MCQ
Fill in the Blanks
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Solution
The value of `(1/2 tan^2 45° - cos^2 60°)` is `bbunderline(1/4)`.
Explanation:
`1/2 tan^2 45° - cos^2 60°`
= `1/2 (1)^2 - (1/2)^2 ...(tan 45° = 1 cos 60° = 1/2)`
= `1/2 - 1/4`
= `(2 - 1)/4`
= `1/4`
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