Question 19

The trigonometric expression cos2A + sin2A can be written as

  • A.cosA(cosA - sinA),
  • B.cos2 A + sin2A - 2sinAcosA,
  • C.2sinAcosA + cos^2A + sin^2A
  • D.cos2A + sin2A - 2sinAcosA.
Objective

Question details

Exam body
OAU
Subject
Mathematics
Year
2007/2007
Question no.
#19
Type
Objective

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