What is the value of sin (630 + A) + cos A?

More Questions from Simplification

• What is the value of [(sin 59° cos 31° + cos 59° sin 31° )÷(cos 20° cos 25° – sin 20° sin 25° )]?
• What is the value of cos (90 – B) sin (C – A) + sin (90 + A) cos (B + C) – sin (90 – C) cos (A + B)?
• A tower stands on the top of a building which is 40 metres high. The angle of depression of a point situated on the ground from the top and bottom of the tower are found to be 60 and 45 deg respectively. What is the height (in metres) of tower?
• What is the value of sec2θ + 1sec2θ - 1 x 12cotθ - tanθ ?
• What is the value of the expression a3 - 5 + 2816a , when a = 2?
• Sumit and Amit undertook a work for Rs 7200. Sumit alone can do the work in 5 days and Amit alone can do the work in 4 days. If they work together,then what will be the difference (in Rs.) in the amount they receive?
• What is the value of ( 1/3 - cot60°) ?
• ∆ XYZ is right angled at Y. If tanX = 15/8, then what is the value of sinZ ?
• If cot(A/2) = x, then the value of x is
• If (1 - cosA)/(1 + cosA) = x, then the value of x is

Discussion & Comments