Tell if `- 2 (1)/(5) - (-2 (3)/(16) )` is positive or negative. Explain.

Show that if a and b are real,the principal value of arg a is 0or ti according as a is positive or negative and that of bi is (pi)/(2) or -(pi)/(2) according as b is positive or negative.

[16^(-(1)/(5))]^((5)/(2))

if -(1)/(2)

If vec(j) and vec(E ) are current and electric field inside a current carrying conductor at an instant then vec(j). Vec( E ) is (1) Positive (2) Negative (3) Zero (4) May be positive or negative

Let f(x)=((x-3)(x+2)(x+6))/((x+1)(x-5)) Find intervals where f(x) is positive or negative

Let f(x)=((x-3)(x+2)(x+5))/((x+1)(x-7)) . Find the intervals were f(x) is positive or negative .

The value of (16)^((5)/(2)) + (16)^((-3)/(2)) is equal to

Solve : [(16)^(-(1)/(5))]^((5)/(2))

The value of sin1.cos2.tan3.cot4.sec5.cos ec6 is (1) Positive (2) Negative (3) Zero (4) May be positive and Negative

A sol of Agl can be positively or negatively charged. Explain how and why?