Question

Sin 60 degree into sin 45 degree minus Cos 60 degree into cos 45 degree

Answer 1

Answer is ( root 3 minus 1) divided by 2root2

Step-by-step explanation:

Brother you can answer easily. For this you just have to know the Trigonometry Table, from which we get ro know that the value of sin60 is root over 3 divided by 2. Sin45 is equal to cos45 which is equal to 1 divided by root 2 and cos60 is 1/2. Now u multiply the value of cos60 and cos45 and substract it from the value u get by multiplying sin60 and sin45. The answer we get is ( root 3 minus 1) divided by 2root2.

Answer 2

Answer:

√3/2 × 1/√2 - 1/2 × 1/√2

= 3/2√2 & 1/2√2

ans: √3-1/2√2