Verify the identity.(tan x + 1)2 + (tan x - 1)2 = 2 sec2 x
What will be an ideal response?
(tan x + 1)2 + (tan x - 1)2 = tan2x + 2 tan x + 1 + tan2x - 2 tan x + 1 = 2(tan2x + 1) = 2 sec2x
Mathematics
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Solve.Find the angle a in the taper shown. Round to the nearest hundredth of a degree.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the inequality. Write the solution set in interval notation.(x2 - 49)(x2 - 1) > 0
A. (-?, -7) ? (-1, 1) ? (7, ?) B. (-?, -7] ? [-1, 1] ? [7, ?) C. [-7, -1] ? [1, 7] D. (-7, -1) ? (1, 7)
Mathematics
Given matrices A = 
, B = 
, and C = 
, decide if the statement is true or false.ABC is a 2 × 4 matrix.
A. True B. False
Mathematics
Add.-10 + 40
A. -50 B. 50 C. -30 D. 30
Mathematics