11.8
Which of the following is not an identity?
(1 + cos^2x) / sin^2x = 1
Which of the following is an identity
(tanx + cotx)(sinx cosx) = 1
The expression (secx + tanx)^2 is the same as _.
1 + 2tan^2x + 2secx tanx
The expression (cscx + cotx)^2 is the same as _.
1+ 2cot^2x+2cscx cotx
The equation cost +sinx = √3+1 / 2 is an identity.
False
The equation tan^2x + 1 = sec^2x.
True
Which of the following are identities?
cot^2x + 1 = csc^2x sin^2 x + cos^2x = 1
Which of the following is not an identity?
csc^2x + sec^2x = 1
The expression sinx +cotx cosx can be simplified to _.
cscx
Which of the following equations are identities? Check all that apply
cscx = 1/sinx cotx = 1/ tanx
The expression (tanx + cotx)^2 is the same as _.
sec^2x + csc^2x
The expression sinx(cscx - cotx cosx) can be simplified
sin^2x
Which of the following is an identity
sin^2x sec^2x + 1 = tan^2x csc^2x
Which of the following equations are identities? Check all that apply
sin^2x=1 - cos^2x tan^2x = sec^2x - 1
Which of the following would be an acceptable first step in simplifying the expression sinx / 1 + sins
sinx (1 - six) / (1 + sinx) (1 - sinx)