# your code goes hereds2=u2u2+2Mdt2−4(u2+2M)du2−(u2+2M)2dΩ2.ds2=u2u2+2Mdt2−4(u2+2M)du2−(u2+2M)2dΩ2.
ds2=u2u2+2Mdt2−4(u2+2M)du2−(u2+2M)2dΩ2.
Standard output is empty
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