Cos² 30 + sin² 45 - ⅓ tan²60
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Answered by
7
answer is ..
(√3/2)*2+(1/√2)*2-1/3(√3)*2
3/4+1/2-1/3×3
3/4+1/2-1
1/2....
hope u get it...❤
(√3/2)*2+(1/√2)*2-1/3(√3)*2
3/4+1/2-1/3×3
3/4+1/2-1
1/2....
hope u get it...❤
Answered by
2
Cos² 30 + sin² 45 - ⅓ tan²60
(cos 30)^2 + (Sin 45)^2 – 1/3 (tan 60)^2
(Root 3/2)^2 + (1/root 2)^2 – 1/3 (root 3)^2
¾ + ½ + 3/3
¾ + ½ + 1
(3+ 2+ 4)/ 4
9/ 4
Value of sin 45 = 1/root 2
Value of cos 30 = root 3/2
Value of tan 60 =root 3
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