2 7 2 x 49 2 July 8, 2019 16 32 64 128 7 2log2 2 cos x )= 49 7 log 2 cosx X 7 2 y 2 2 49 22 7 x 49 2 x 49 2 2 x 7 )( 25x 2 − 49 )= 0 2x x 7 2 x 2 bx 49 2 7 + 49 (-7) 2 49 x 2
