*plese * *will be awarded brainliest answer*
pes experiments frequently use an x-ray wavelength of 0.8340 nm. recall that the energy of a photon can be calculated using the equation e=hclλ.
a. calculate the energy of the x-ray photon used in the pes experiment described.
b. calculate the ionization energy of a photoelectron with a kinetic energy of 2.372*10^-16j.

sec² (x)

Explanation:

Use the trigonometric ratio definition of the tangent function and the quotient rule.

tan(x) = sin(x) / cos(x)

Quotient rule: the derivative of a quotient is:

[the denominator × the derivative of the numerator less the numerator × the derivative of the denominator] / [denominator]²(f/g)' = [ g×f' - f×g'] / g²

So,

tan(x)' = [ sin(x) / cos(x)]' [ sin(x) / cos(x)]' = [ cos(x) sin(x)' - sin(x) cos(x)' ] / [cos(x)]²

                                   = [ cos(x)cos(x) + sin(x) sin(x) ] / [ cos(x)]²

                                   = [ cos²(x) + sin²(x) ] / cos²(x)

                                   = 1 / cos² (x)

                                   = sec² (x)

The result is that the derivative of tan(x) is sec² (x)

The answer is 3,5g co

Ibelieve y y even though i've only taken chemistry for one year