Question

Prove that: 4(sin⁴ 30 + cos⁴ 60) - 2/3 (sin² 60 - cos² 45) + 1/2 tan² 60 =
$1 \times \frac{5}{6}$
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Answer 1

Hi there !!

Correct question:-

We have to prove 11/6 not 5/6.

Look at the àttachment ↑↑

Thankyou :)

Answer 2

Answer:

[Note : refer the attachment]

correct question :

Prove that: 4(sin⁴ 30 + cos⁴ 60) - 2/3 (sin² 60 - cos² 45) + 1/2 tan² 60 $=\frac{11}{6}$

[Proof in the attachment ]