If tanx = cot(45°+2x) find the value of sin3x.
Answer & explanation
Correct answer: option 3
If tanx = cot(45°+2x)
(x+45°+2x)=90°
3x=45
x=15
Now, sin3x=sin3×15
=\(\frac{1}{\sqrt {2}}\)
If tanx = cot(45°+2x) find the value of sin3x.
Correct answer: option 3
If tanx = cot(45°+2x)
(x+45°+2x)=90°
3x=45
x=15
Now, sin3x=sin3×15
=\(\frac{1}{\sqrt {2}}\)