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Select the correct proof of the identity. cos r (tanz-sec (-2)) = sinz-1 cos z (tanz-sec (-2)) sin z cos cos(-2) sinz 1 COS

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Select the correct proof of the identity. cos r (tanz-sec (-2)) = sinz-1 cos z (tanz-sec (-2)) sin z cos cos(-2) sinz 1 COS 2 COB 2 cos(z) sin z 1 COS - cos 2 cos(2) sin x 1 cosz (tanz-sec (-2)) sin z -COS 2 con z cos(-2) sin z -COSI + 006 z cos(z) sin 1 COS. COS 2- cos 2 cos(2) cos x (tanz-sec(-2)) cos z (tanz sec (-)) sinz-1 sin z cos cos z sin( COS 2 sin cosa 1 + sin() 1 sia cos COS 2- sin(z) sin z 1 COS sin a sin(-) con +1 sin z sin a(sin-1) sin sin 2-1

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