Which is the principal value of tan '(-1.4)?

305.54degrees

Step-by-step explanation:

WE are to find the principal value of tan^-1(-1.4). Principal value means the highest value  

theta = tan ^-1(-1.4)

theta = -54.46

Since theta is negative in the fourth quadrant;

theta = 360 - 54.46

theta = 305.54degrees

Hence the principal value is 305.54degrees

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb