What was the day of the week on 23rd July 2015?
2000 years have 0 odd day, 14 years = 3 leap years + 11 ordinary years = {(3 ×2)+ (11 ×1)} odd days = (6 + 11) odd days = 2 weeks + 3 odd days January = 31 February = 28 March = 31 April = 30 May = 31 June = 30 July = 23 Total = 204 days = 1 odd day Total number of odd days = (0 + 3 + 1) = 4 odd days ∴ Required day was Thursday.
cos (sec-1 x) is equal to –
If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` +`1/sec q` +`1/sec r` +`1/sec s`
...Find the slope of the equation : 12x + 4y = 28.
If tan 3.5θ x tan 6.5θ = 1 then the value of tan 5θ is
If secθ + tanθ = 3+√10, then the value of sinθ+cosθ is
If x = 4 cos A + 5 sin A snd y = 4 sin A – 5 cos A, then the value of x2+y2 is :
What is the value of [tan2 (90 – θ) – sin2 (90 – θ)] cosec2 (90 – θ) cot2 (90 – θ)?
...cos A (sec A – cos A) (cot A + tan A) = ?
