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Q3: (a) Use the identity tan A + tan B tan( A + B)= 1-tan Atan B to express tan 2x in terms of tan

Q3: (a) Use the identity tan A + tan B tan( A + B)= 1-tan Atan B to express tan 2x in terms of tan X. (b) Show that 2 tan x 2- 2tan x- (1-tan x) tan 2x for all values of x, tan 2x # 0

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