Prove that:

29
Find the value of (4/3) tan ² 30 ^o +sin ² 60 ^o – 3 cos ² 60 ^o + (3/4) tan ² 60 ^o –2 tan ² 45 ^o .
30
Find the value of 4(sin ⁴30 ^o+ cos ⁴60 ^o)– 3(cos ²45 ^o+ sin ²90 ^o).
32
Find the value of (4/3)tan ²30 ^o+ sin ²60 ^o–3 cos ²60 ^o+ (3/4) tan ² 60 ^o –2 tan ² 45 ^o .
33
Determine whether the following equation is identity: