If(1+cosA)(1-cosA)=3/4, find secA
Answers
Answered by
4
(a+b)(a-b) = a²-b²
(1+cosA)(1-cosA) = 3/4
1-cos²A = 3/4
sin²A = (3/4)
sinA = √3/2
therefore, opposite side=√3; hypotenuse=2
so, adjacent side=1
secA = hypotenuse/adjacent
secA = 2/1 = 2
(1+cosA)(1-cosA) = 3/4
1-cos²A = 3/4
sin²A = (3/4)
sinA = √3/2
therefore, opposite side=√3; hypotenuse=2
so, adjacent side=1
secA = hypotenuse/adjacent
secA = 2/1 = 2
Hiteshbehera74:
mark it as brainliest if you liked it
Answered by
5
hope you understand...
plz mark as brainlist...
plz mark as brainlist...
Attachments:
thnx bhaii
Similar questions