Use the Binomial Theorem to expand each binomial (2x-1)^6
1 answer:
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Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
secx = , cosecx =
cotx = , tanx =
Consider the left side
secA cosecA - cotA
= ×
-
= -
=
= ( cancel sinA on numerator/ denominator )
=
= tanA = right side ⇒ proven