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You could just pull out the half: it will be (1/2) cos squared x.
x[x+1] squared Simplified is, to my knowledge, x squared plus ( x + 1) squared
x^2+x^2=2x^2
I believe this is one: [(X,... X+1,... X+2,... X+3,...) squared] +1 Where X is any natural number. (X) squared + 1 (X + 1) squared + 1 (X + 2) squared + 1 (X + 3) squared + 1...
v2 = b2 (a2 - x2)Divide each side by b2 :v2/b2 = a2 - x2Subtract a2 from each side:v2/b2 - a2 = -x2Multiply each side by -1 :x2 = a2 - v2/b2Take the square root of each side:x = ± sqrt ( a2 - v2/b2 )