1.

1/cotA+tanB-1/tanA+cotB=tan(A+B)

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Answer:

These VERBS INCLUDE: start, leave, change, LIVE, stop. Auxiliary verbs are also known as helping verbs and are USED together with a main verb to show the verb's tense or to form a QUESTION or negative. Common examples of auxiliary verbs include have, might, will.



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