##SA=2(wl+lh+hw)## For a rectangular prism with sides ##wlh## the surface area is ##SA=2(wl+lh+hw)## This occurs since there are two pairs of three different faces on every […]
##2560pi## cubic units. If the cone has a slant height of ##color(orange)(s=34)## and a radius of ##color(red)(r=16)## then its height is (using the Pythagorean Theorem) ##color(white)(XXX)color(blue)(h)=sqrt(color(orange)(34)^2-color(red)(16)^2)=color(blue)(3)0## […]
To go from to degree measure you perform the following conversion: ##(pi(radians))/180^o*(degrees)=radians## To go from degree measure to radian measure you perform the following conversion: ##180^o/(pi(radians))*(radians)=degrees## […]
The secant function can’t be evaluated in ##pi/2##. Just apply the definition and evaluate: ##sec(x)=1/cos(x)## Thus ##sec(pi/2)=1/cos(pi/2)## But since ##cos(pi/2)## is zero this division is not […]