What is the value of cos(pi/3)-tan(pi/4) ?

The value of cos(pi/3)-tan(pi/4) is -1/2

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cos(pi/3)-tan(pi/4)

cos (\frac{π}{3}) - tan (\frac{π}{4})

- \frac{1}{2}

Solution steps

cos (\frac{π}{3}) - tan (\frac{π}{4})

Use the following trivial identity:

cos (\frac{π}{3}) = \frac{1}{2}

Use the following trivial identity:

tan (\frac{π}{4}) = 1

= \frac{1}{2} - 1

Simplify

\frac{1}{2} - 1 : - \frac{1}{2}

= - \frac{1}{2}

tan (17 5^{\circ})

arcsin (\frac{5}{8.8})

e^{- 2} - cos (2)

25 \cdot cos (4 0^{\circ})

cos (\frac{π ^{2}}{2})

What is the value of cos(pi/3)-tan(pi/4) ?
The value of cos(pi/3)-tan(pi/4) is -1/2