Question

if sin(2a+b) =1 and cos(a+2b)=1/2 find the values of a and b​

Answer 1

Answer:

a=40 b=10

Step-by-step explanation:

sin(2a+b) = 1

sin(2a+b) = sin90°

2a+b=90...... eq1

cos(a+2b)=1/2

cos(a+2b)=cos60°

a+2b=60.......eq2

eq1 × 2 => 4a+2b=180....eq3

eq3 - eq2

4a + 2b=180

a. +.2b=60

-. -. -

_____________

3a = 120

a =40

b= 10

Answer 2

Answer:

here

Step-by-step explanation:

here hope you get it as my net is VERY slow