four * ten ^log(cos(two *x))*(-sin(two *x)^ two /cos(two *x)^ two + log(ten)*sin(two *x)^ two /cos(two *x)^ two - one)*log(ten) = zero
4 multiply by 10 to the power of logarithm of ( co sinus of e of (2 multiply by x)) multiply by ( minus sinus of (2 multiply by x) squared divide by co sinus of e of (2 multiply by x) squared plus logarithm of (10) multiply by sinus of (2 multiply by x) squared divide by co sinus of e of (2 multiply by x) squared minus 1) multiply by logarithm of (10) equally 0
four multiply by ten to the power of logarithm of ( co sinus of e of (two multiply by x)) multiply by ( minus sinus of (two multiply by x) to the power of two divide by co sinus of e of (two multiply by x) to the power of two plus logarithm of (ten) multiply by sinus of (two multiply by x) to the power of two divide by co sinus of e of (two multiply by x) to the power of two minus one) multiply by logarithm of (ten) equally zero
4*10 to the power of log(cos(2*x))*(-sin(2*x) to the power of 2/cos(2*x) to the power of 2 + log(10)*sin(2*x) to the power of 2/cos(2*x) to the power of 2 - 1)*log(10) = 0