3. Solve for the indicted segment..
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What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Plz hurry evaluate the expression a+b where a=8 and b=19