evaluate without using trigonometric table
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Answer :
1
Solution :
2- 2/5 - 3/5
=10-2-3/5
=10-5/5
=1
KARTIKbrilliant:
from where 1/5 came?
i am unable to solve last fraction
3 tan 45× tan(90-70)×tan(90-50)×tan50×tan70
3×1×cot 70×cot50×tan 50×tan 70/5
then all cot and tan will be cancelled
so it will be 3/5
then answer will be 1
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