f (x) = cos (tan (2x))
Differentiate.
Mathematics
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Find the slope of a line tangent to the given curve at the given point.y = 
; x = 2.45 (Round the nearest hundredth.)
A. -0.24 B. 0.75 C. 0.44 D. 0.30
Mathematics
Answer the question.Bob chose one of the numbers 1, 2, 3, . . . , 128 and challenged Betty to determine the number by asking questions to which Bob would answer 'yes' or 'no'. What is the minimum number of questions that Betty must ask to be certain of guessing the correct number?
A. 64 questions B. 12 questions C. 7 questions D. 32 questions
Mathematics
Round the whole number to the given place value.4455 to the nearest thousand
A. 4100 B. 3900 C. 5000 D. 4000
Mathematics
Complete the identity.1 + tan2? = ?
A. 1 + sec2 ? B. sec2 ? C. sec? D. 2 sec?
Mathematics