Math, asked by arshiyarabbani32471, 10 months ago

Evaluate sin^2 39+sin^2 51+sec^2 27-cot^2 63+tan5×tan25×tan45×tan65×tan85

Answers

Answered by vikeshjee

2

Answer:

3

Step-by-step explanation:

sin²39+sin²51+sec²27-cot²63+tan5×tan25×tan45×tan65×tan85

sin²39+sin²(90-39)+sec²27-cot²(90-27)+tan5×tan85×tan25×tan65×tan45

sin²39+cos²39+sec²27-tan²27+1×1×1

1+1+1

3

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