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If #tan(pi/2sintheta) = cot(pi/2costheta)# then sum of all possible values of #sintheta + costheta# equal to?

Topic:halflife decay 2.80moles of a radioactive element was originally present in a given sample of compound.if after 45.6moles of it remain,find the half life of this element?

A container has a volume of #14 L# and holds #9 mol# of gas. If the container is compressed such that its new volume is #4 L#, how many moles of gas must be released from the container to maintain a constant temperature and pressure?

How do you use the binomial series to expand #f(x)=(1+x)^(1/3 )#?

How do you convert #4=(x4)^2+(y1)^2# into polar form?

Question #9245f

What numbers would the base10 logarithm of 270 fall between?

What is the formula for distance from a changing velocity?

What is the magnitude of vector #AB# if #A= (4,2,6)# and #B=(9,1,3)#?

How can I recognize a geometric sequence?

What is the sum of the arithmetic sequence 22, 13, 4?

What is the range of #f(x)=x+4+2#?

What is the graph of #r=a cos 2theta#?

How do you calculate the density of a gas with temperature change?

How does the gravitational force exerted by a proton on an electron compare to the gravitational force exerted by an electron on a proton?