- b. If 6 sin A - 5 cos A = 0, find the values of cos A and cot A.
Answers
Answered by
3
Answer:
cosA = 6/√61 , cotA = 6/5 .
Step-by-step explanation:
6 sin A - 5 cos A=0
=> 6 sin A = 5 cos A
=> sinA/ cos A= 5/6
=> tanA = 5/6
sec A = √(1 +(5/6)²
= √(1+ 25/36)
=√(61/36)
= √61/6
cosA = 6/√61 , cotA = 6/5 .
Answered by
2
Answer:
value of cotA = 6/5
value of cosA = 6/√61
explanation:
6sinA-5cosA=0 => cosA/sinA = 6/5 => cotA = 6/5
tanA=5/6 =>sec^2 A = 1+ tan^2 A =>sec^2 A = 1+ 25/36 => sec^2 A = 61/36 => secA = √61/ 6 => cosA = 6/√61
value of cotA = 6/5
value of cosA = 6/√61
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