3 years ago

12^3 tanx-4^3tan2xsolve next step fast guys

Mathematics

1 answer:

shepuryov [24]3 years ago

4 0

Step-by-step explanation:

3 tan 2x - 4 tan 3x = tan² 3x * tan 2x

3 (tan 2x - tan 3x) = tan 3x + tan² 3x * tan 2x

= tan 3x (1 + tan 3x * tan 2x)

3 (tan 2x - tan 3x)/(1 + tan 3x * tan 2x) = tan 3x

3 * (- tan x) = tan 3x

-3tanx = (3 tan x - tan³ x) / (1 - 3 tan² x)

3 - tan² x = - 3 + 9 tan² x

tan x = + √3 /√5 or - √3/√5

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12^3 tanx-4^3tan2xsolve next step fast guys​

12^3 tanx-4^3tan2xsolve next step fast guys