plzzzzzzzzzzzzzz solve any one question
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4.
(sin+cos)²+(sin-cos)²=2
sin²+cos²+2sin×cos+sin²+cos²-2sin×cos
sin²+cos²+sin²+cos²
1+1. (sin²+cos²=1)
=2
proved...
(sin+cos)²+(sin-cos)²=2
sin²+cos²+2sin×cos+sin²+cos²-2sin×cos
sin²+cos²+sin²+cos²
1+1. (sin²+cos²=1)
=2
proved...
payal79:
thank you so much☺
welcome
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