3 sin A-cos A
1. If 5cot A = 6, find the value of 5 cos A+9 sin A
Answers
Answered by
1
Answer:
5cotA=6
cotA=6/5
cosA/sinA=6/5
Here,sinA=5/√61
cosA=6/√61
=>5(6/√61)+9(5/√61)
=30/√61+45/√61
=75/√61
=75/7.8
=9.6165..
Answered by
0
Answer:
75√61/61
Step-by-step explanation:
cotA=6/5
sinA=5/√61
cosA=6/√61
5*6/√61+9*5/√61
30/√61+45/√61
75/√61
rationalize it
75√61/61
hope it will help u
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