Verify the identity.(sec ? - tan ?)(sec ? + tan ?) = 1
What will be an ideal response?
(sec ? - tan ?)(sec ? + tan ?) = sec2 ? - tan2 ? = 1
Mathematics
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Find Dxy.y = sech-19x
A. - 
B. - 
C. - 
D. - 
Mathematics
Find the determinant.
A. 
B. - 
C. 0
D. 
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Find the requested function value.f(x) = -7x - 2, g(x) = -5x2 - 9x + 1Find (g ? f)(5).
A. 481 B. 519 C. 1181 D. -6511
Mathematics
Find the exact value of the expression.sin
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B. 
C. 
D. 
Mathematics