B-{
ww<4}
C={w | w27}

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

What is sin 7x/4 ? i need on this urgent trig