evaluate:sin² 50⁰+sin² 40⁰+cot 45⁰
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Answer:
2
Step-by-step explanation:
sin² 50⁰+sin² 40⁰+cot 45⁰
sin² (90-40)+sin² 40⁰+cot 45⁰
cos² 40⁰+sin² 40⁰+cot 45⁰
sin²40°+cos²40°+cot45°
1+1
2
.........666.......
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