What is the value of ln(tan(pi/4)+sec(pi/4)) ?

The value of ln(tan(pi/4)+sec(pi/4)) is ln(1+sqrt(2))

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ln(tan(pi/4)+sec(pi/4))

ln (tan (\frac{π}{4}) + sec (\frac{π}{4}))

ln (1 + 2)

Solution steps

ln (tan (\frac{π}{4}) + sec (\frac{π}{4}))

Use the following trivial identity:

tan (\frac{π}{4}) = 1

Use the following trivial identity:

sec (\frac{π}{4}) = 2

= ln (1 + 2)

tan^{2} (5 4^{\circ})

sin (24 0^{\circ} - 31 5^{\circ})

2 sin (15 0^{\circ}) - 1

arctan (\frac{24}{- 7})

3 tan (5 3^{\circ})

What is the value of ln(tan(pi/4)+sec(pi/4)) ?
The value of ln(tan(pi/4)+sec(pi/4)) is ln(1+sqrt(2))