If `cos25^0+sin25^0=p ,` then `cos50^0` is (a)`sqrt(2-p^2)` (b) `-sqrt(2-p^2)` (c)`psqrt(2-p^2)` (d) `-psqrt(2-p^2)`

If cos25^(0)+sin25^(0)=p, then cos50^(@) is (a) sqrt(2-p^(2))(b)-sqrt(2-p^(2))(c)p sqrt(2-p^(2))(d)-p sqrt(2-p^(2))

If cos25^(@)+sin25^(@)=p , then cos 50^(@) is

If cos 25^0 + sin 25^0 = p , then cos 50^0 is equal to

cos25^(@)-sin25^(@)=p then find cos50^(@)

If AM and GM of x and y are in the ratio p: q, then x: y is : a) p - sqrt(p^(2)+ q^(2)) : p +sqrt (p^(2)+ q^(2)) b) p +sqrt(p^(2) - q^ (2) ) : p- sqrt(p^(2)-q^(2)) c) p : q d) p + sqrt(p^(2) + q^(2)) : p-sqrt(p^(2) + q^(2))

lim_(x rarr0)(sqrt(4^(2)+p^(2))-p)/(sqrt(x^(2)-q^(2)-q))

lim_(x rarr0)(sqrt(x^(2)+q^(2))-q)/(sqrt(x^(2)+p^(2))-p)

If the equations y=m x+c and xcosalpha+ysinalpha=p represent the same straight line, then (a) p=csqrt(1+m^2) (b) c=psqrt(1+m^2) (c) c p=sqrt(1+m^2) (d) p^2+c^2+m^2=1

If the equations y=m x+c and xcosalpha+ysinalpha=p represent the same straight line, then (a) p=csqrt(1+m^2) (b) c=psqrt(1+m^2) (c) c p=sqrt(1+m^2) (d) p^2+c^2+m^2=1

If the equations y=m x+c and xcosalpha+ysinalpha=p represent the same straight line, then (a) p=csqrt(1+m^2) (b) c=psqrt(1+m^2) (c) c p=sqrt(1+m^2) (d) p^2+c^2+m^2=1