cos 90 + cos ² 45 x sin 30 x tan 45
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Answered by
1
cos 90=0;cos45=/√2;sin 30=1/2;tan45=1answer is 1/4=0.25
Answered by
0
Step-by-step explanation:
o+(1/√2)2 × 1/2×1
o+1/2×1/2
1/4
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