show that cos 45.cos60 -sin45 sin 60
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0
Answer: 1-(3)½/2(2½)
Step-by-step explanation:
Answered by
2
Step-by-step explanation:
cos45 = 1÷square root of 2 = sin 45
cos 60 = 1 ÷ 2
sin 60= square root of 3 ÷ 2
applying in the above question
1÷ 2^(3÷2) - 3^(1÷2)÷2^(3÷2) by simplifying
answer: (1- 3^(1÷2)) ÷ 2^(3÷2)
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