Question

4. If A+B=90°, then minimum and maximus
values of (cos A cos B) respectively are​

Answer 1

Answer:

The sine function forms a wave that starts from the origin

sin θ = 0 when θ = 0 ˚, 180˚, 360˚.

Maximum value of sin θ is 1 when θ = 90 ˚. Minimum value of sin θ is –1 when θ = 270 ˚. So, the range of values of sin θ is –1 ≤ sin θ ≤ 1.

As the point θ moves round the unit circle in either the clockwise or anticlockwise direction, the sine curve above repeats itself for every interval of 360˚. The interval over which the sine wave repeats itself is called the period.

Answer 2

Answer:

a=45 b=45

Step-by-step explanation:

you just have to divide 90 by two which will give you 45 after doing that to cross check if you are correct you subtract 45 from 90 if it is going to give a lower number but it still give you 45 that how you get a and b