7sin²x + 3cos²x = 4 , then find the value tanx ?
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Answered by
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Shaik96:
Consider the negative values also for complete description of answer
Answers will be +1/root 3 and -1/root 3
Why are our answers different...??
Sorry.... I made a mistake
And angles are 30,210,330
What you all are talking about
These values of angles satisfy the given Equations so we will also have negative solution
Tan of both 30 and 210 gives positive 1/root 3 value while tan(330) gives -1/root 3
Answered by
3
4sin²x + 3sin²x + 3cos²x = 4
4sin²x = 4−3=1
sin²x= 1/4
sinx = ±1/√2
So tanx = ± 1
This is the solution to this question....
I hope this helps you...
4sin²x = 4−3=1
sin²x= 1/4
sinx = ±1/√2
So tanx = ± 1
This is the solution to this question....
I hope this helps you...
Oh sorry....
It should should be ± ½ instead of ±1/√2
It should should be ± ½ instead of ±1/√2
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