Question

Cos square 45 plus sec square30 plus tan square90

Answer 1

Answer:

Using trigonometry table.....

cos 45° = 1/√2

sec 30° = 2/√3

tan 90° = not define

Now ,

= 1/√2 + 2/√3

= 3/ √2 √3

Hope this helps you

Answer 2

Answer:

apply the formula nd solve it step by step ....