Question

If cos (8-). cost and cos (
8 0 ) are in H.P then cos8 sec = V
4)
1) 1
2) =
3) v3
The quadratic equation whose roots are Sin-18° and Cos-36° is
1) 1672-12x+1=0 2) 16x +12x+1=0 3) 16-12x-1=0
4) 16r--10x+1=0
cos290°
V3sin250°
123
2) 43
5 Cosec20° -Sec20=
​

Answer 1

Answer:

Step-by-step explanation:

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