Bob is verifying the identity, sin 3x + x) = - cos x. He took these steps: Step 1: sin (31 + x)=sin3A. cosx -cos Tinx
no .
Step 2: = sin
COS X + 0
Step 3: = -1.cos x + 0
He made a mistake at which step? Step

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.

Vikram is studying the square pyramid below. on st to find the surface area of the pyramid, in square inches, vikram wrote (33.2) (34 ikram wrote (33.2)(34.2)+43(34.2)(284) what error did vikram make? o he used the same expression for the area of all four lateral faces. he used the wrong expression to represent the area of the base of the pyramid. o he used the wrong value as the height when he found the area of the lateral faces. he used an expression for surface area that only finds the total area of three faces.