Question

find the value of theta =?, if tan theta = 4/5 then theta = tan^-1 (4/5).
answer me with out calculator.

Answer 1

Answer:

theta or other symbols like

$\alpha \beta \gamma$

are used to indicate the angle of a required measurement.

tan(theta)= 4/5 means that for angle (theta)°, the value of tan (theta) is 4/5 or 0.8

in other words u can say that it indicates the ratio between perpendicular and base.

Step-by-step explanation:

but sorry...as far as I know, the value can't be calculated without a call-u-later. I asked my teacher also. he says it is impossible