Tube lessons

1)

If \(\sin\theta-\cos\theta\)=0,and \(\pi<\theta<\frac{3\pi}{2}\),then \(\theta\) is

2)

If cosec\(\alpha\)- cot\(\alpha\)= \(\frac{1}{2}\) and alies in the 1st quadrant,then cos\(\alpha\) is equal to:

3)

If n is an even positive integer ,then sin\(x\)+\(\sin(\pi+x)\)+\(\sin(2\pi+x)\)+........ upto n terms is

4)

For any integer n,\(tan[n.\frac{\pi}{2}+(-1)^{n}\frac{\pi}{4}]\) is

5)

If \(\theta\)= \(\frac{17\pi}{3}\), then the value of (tanâ¡\(\theta\)-cot\(\theta\)) is

Mathematics