Question

find the value of the following. (sin 90° + cos 60° + cos 45º)× (sin 30° + cos 0° - cos 45º)​

Answer 1

Answer:

21+12 √2

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Step-by-step explanation:

• (1+½+¹/ √2)X(½+1+¹/ √2)
• (2 √2+ √2+2) X ( √2+2 √2+2)

2 √2 √2 2 √2

• (3 √2+2) X (3 √2+2)

2 √2 2 √2

• (3 √2+2)(3 √2+2)

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• 18+12 √2+4

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• 21+12 √2 Ans.

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