Question

prove that : sin(70°+theta)- cos(20°-theta)=0​

Answer 1

Answer:

pls write the question properly bcoz there is no 70° given for sin (70°+theta) - cos (20°- theta) and if I give u the explanation then the explanation would be of about 4-5 pages

Answer 2

Step-by-step explanation:

sin (70°+theta) - cos (20° - theta) =0

sin {90°-( 70° + theta) - cos ( 20° -theta ) =0

cos (20°- theta) - cos ( 20° - theta) =0

0=0