I needs help please and tank chu

White alphabet used to denote matrix and its element with example

Oksanka [162]

Answer:

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Step-by-step explanation:

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3 0

2 years ago

Verify this cofunction identity by using the difference identity for cosine. Show your work! cos⁡(π/2-θ)=sinθ

taurus [48]

Cos(A-B) = cosAcosB + sinAsinB

cos(π/2 - θ) = cos(π/2)cosθ + sin(π/2)sinθ

π/2 = 90°
cos(π/2) = cos90° = 0. sin(π/2) = sin90° = 1

cos(π/2 - θ) = cos(π/2)cosθ + sin(π/2)sinθ

= 0*cosθ + 1*sinθ = sinθ

Therefore cos(π/2 - θ) = sinθ

QED

8 0

3 years ago

In March, Audrey planted a tomato plant that was 11.25 inches tall. It grew 7.6 inches taller by July. How tall was the tomato s

m_a_m_a [10]

18.85 inches tall I believe. Tell me if am wrong

3 0

3 years ago

PLS HELP will give brainliest

katen-ka-za [31]

Answer: D

Step-by-step explanation:

6 0