What is cos(arctan(4/3)+pin) ?

The solution to cos(arctan(4/3)+pin) is 3/5 cos(inp)-4/5 sin(inp)

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simplify cos(arctan(4/3)+pin)

simplify

cos (arctan (\frac{4}{3}) + p in)

\frac{3}{5} cos (in p) - \frac{4}{5} sin (in p)

Solution steps

cos (arctan (\frac{4}{3}) + p in)

Rewrite using trig identities

= \frac{3}{5} cos (in p) - \frac{4}{5} sin (in p)

f (x) = sec (2) tan (x)

2 tan (x + \frac{π}{2})

cos (\frac{3 π}{2} + a)

25 - 25 sin^{2} (x)

cos (3 0^{\circ} - θ)

What is cos(arctan(4/3)+pin) ?
The solution to cos(arctan(4/3)+pin) is 3/5 cos(inp)-4/5 sin(inp)