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cosø + sin ø = √ 2cosø
squaring both sides
cos^ 2ø + sin^ ø = 2cos^2 ø
1 = 2cosø^ 2
√1\2 =cosø
1\√2 = cosø
cos 45° = cos ø
cos ø + sin ø = √ 2 sinø
squaring both sides
1 = 2sin^ 2 ø
1\√2 = sinø
sin 45° = sin ø
Hence proved.
squaring both sides
cos^ 2ø + sin^ ø = 2cos^2 ø
1 = 2cosø^ 2
√1\2 =cosø
1\√2 = cosø
cos 45° = cos ø
cos ø + sin ø = √ 2 sinø
squaring both sides
1 = 2sin^ 2 ø
1\√2 = sinø
sin 45° = sin ø
Hence proved.
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