if 4 sinx +3cosx=5. Find the value of tanx
Answers
Answered by
3
divide both sides by cosx then square both sides and convert sec square x into tan square x.
imuraviranjan:
you'll get the quadratic equation. solve for tanx
Answered by
17
4sinx+3cosx=5
divide by cosx both sides
=>4tanx +3=5secx
square both sides
16tan²x+9+24tanx=25sec²x
we know sec²x=1+tan²x
putting value
16tan²x+9+24tanx=25+25tan²x
9tan²x-24tanx+1=0
factorise it and get answer.
pls mark brainliest
divide by cosx both sides
=>4tanx +3=5secx
square both sides
16tan²x+9+24tanx=25sec²x
we know sec²x=1+tan²x
putting value
16tan²x+9+24tanx=25+25tan²x
9tan²x-24tanx+1=0
factorise it and get answer.
pls mark brainliest
u have made a mistake 25-9=1 how???
sorry correct it
OK
:-)
thanks
I did
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